I can't get android to work

[mozbeel]

No matter what I do I get the same error for android: (./gradlew assembleDebug)

my repo: https://github.com/mozbeel/iLuma

I already have adapted this repo to my application: https://github.com/libsdl-org/SDL_helloworld/
but not even building the original repo worked for building:
FAILURE: Build failed with an exception.

• What went wrong:
  BUG! exception in phase 'semantic analysis' in source unit 'BuildScript' Unsupported class file major version 68

Unsupported class file major version 68

The error for my app:

Task :app:configureCMakeDebug[arm64-v8a] FAILED

[Incubating] Problems report is available at: file:///C:/Users/moz04/Desktop/GameDevelopment/iLuma/build/reports/problems/problems-report.html

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:configureCMakeDebug[arm64-v8a]'.
> WARNING: A restricted method in java.lang.System has been called

* Try:
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:configureCMakeDebug[arm64-v8a]'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.lambda$executeIfValid$1(ExecuteActionsTaskExecuter.java:130)
        at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:293)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:128)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:116)      
        at org.gradle.api.internal.tasks.execution.ProblemsTaskPathTrackingTaskExecuter.execute(ProblemsTaskPathTrackingTaskExecuter.java:41)
        at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:51)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57) 
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:74)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)       
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)       
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:210)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:205)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:67)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:167)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:54)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
        at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:42)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:331)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:318)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.lambda$execute$0(DefaultTaskExecutionGraph.java:314)
        at org.gradle.internal.operations.CurrentBuildOperationRef.with(CurrentBuildOperationRef.java:85)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:314)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:303)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:459)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:376)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
        at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
Caused by: java.lang.IllegalStateException: WARNING: A restricted method in java.lang.System has been called
        at com.android.build.gradle.tasks.GeneratePrefabPackagesKt$reportErrors$1$1.invoke(GeneratePrefabPackages.kt:304)       
        at com.android.build.gradle.tasks.GeneratePrefabPackagesKt$reportErrors$1$1.invoke(GeneratePrefabPackages.kt:269)       
        at kotlin.io.TextStreamsKt.forEachLine(ReadWrite.kt:163)
        at kotlin.io.FilesKt__FileReadWriteKt.forEachLine(FileReadWrite.kt:244)
        at kotlin.io.FilesKt__FileReadWriteKt.forEachLine$default(FileReadWrite.kt:242)
        at org.gradle.internal.classpath.MethodHandleUtils.invokeKotlinStaticDefault(MethodHandleUtils.java:42)
        at org.gradle.internal.classpath.declarations.KotlinStdlibFileInterceptors.intercept_forEachLine(KotlinStdlibFileInterceptors.java:94)
        at com.android.build.gradle.tasks.GeneratePrefabPackagesKt.reportErrors(GeneratePrefabPackages.kt:269)
        at com.android.build.gradle.tasks.GeneratePrefabPackagesKt$createPrefabBuildSystemGlue$1$1.invoke(GeneratePrefabPackages.kt:114)
        at com.android.build.gradle.tasks.GeneratePrefabPackagesKt$createPrefabBuildSystemGlue$1$1.invoke(GeneratePrefabPackages.kt:114)
        at com.android.build.gradle.internal.cxx.process.ExecuteProcessKt.executeProcess(ExecuteProcess.kt:118)
        at com.android.build.gradle.internal.cxx.process.ExecuteProcessKt.executeProcess$default(ExecuteProcess.kt:85)
        at com.android.build.gradle.tasks.GeneratePrefabPackagesKt.createPrefabBuildSystemGlue(GeneratePrefabPackages.kt:110)   
        at com.android.build.gradle.tasks.ExternalNativeJsonGenerator$configureOneAbi$1$1$2.invoke(ExternalNativeJsonGenerator.kt:215)
        at com.android.build.gradle.tasks.ExternalNativeJsonGenerator$configureOneAbi$1$1$2.invoke(ExternalNativeJsonGenerator.kt:213)
        at com.android.build.gradle.internal.cxx.timing.TimingEnvironmentKt.time(TimingEnvironment.kt:32)
        at com.android.build.gradle.tasks.ExternalNativeJsonGenerator.configureOneAbi(ExternalNativeJsonGenerator.kt:213)       
        at com.android.build.gradle.tasks.ExternalNativeJsonGenerator.configure(ExternalNativeJsonGenerator.kt:113)
        at com.android.build.gradle.tasks.ExternalNativeBuildJsonTask.doTaskAction(ExternalNativeBuildJsonTask.kt:89)
        at com.android.build.gradle.internal.tasks.UnsafeOutputsTask$taskAction$$inlined$recordTaskAction$1.invoke(BaseTask.kt:78)
        at com.android.build.gradle.internal.tasks.Blocks.recordSpan(Blocks.java:51)
        at com.android.build.gradle.internal.tasks.UnsafeOutputsTask.taskAction(UnsafeOutputsTask.kt:81)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:125)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29)
        at org.gradle.api.internal.tasks.execution.TaskExecution$3.run(TaskExecution.java:244)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:30)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:27)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:67)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:167)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:48)
        at org.gradle.api.internal.tasks.execution.TaskExecution.executeAction(TaskExecution.java:229)
        at org.gradle.api.internal.tasks.execution.TaskExecution.executeActions(TaskExecution.java:212)
        at org.gradle.api.internal.tasks.execution.TaskExecution.executeWithPreviousOutputFiles(TaskExecution.java:195)
        at org.gradle.api.internal.tasks.execution.TaskExecution.execute(TaskExecution.java:162)
        at org.gradle.internal.execution.steps.ExecuteStep.executeInternal(ExecuteStep.java:105)
        at org.gradle.internal.execution.steps.ExecuteStep.access$000(ExecuteStep.java:44)
        at org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:59)
        at org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:56)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:210)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:205)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:67)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:167)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:54)
        at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:56)
        at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:44)
        at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:42)
        at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:75)
        at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:55)
        at org.gradle.internal.execution.steps.PreCreateOutputParentsStep.execute(PreCreateOutputParentsStep.java:50)
        at org.gradle.internal.execution.steps.PreCreateOutputParentsStep.execute(PreCreateOutputParentsStep.java:28)
        at org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:67)
        at org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:37)
        at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:61)       
        at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:26)       
        at org.gradle.internal.execution.steps.CaptureOutputsAfterExecutionStep.execute(CaptureOutputsAfterExecutionStep.java:69)
        at org.gradle.internal.execution.steps.CaptureOutputsAfterExecutionStep.execute(CaptureOutputsAfterExecutionStep.java:46)
        at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:40)
        at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:29)
        at org.gradle.internal.execution.steps.BuildCacheStep.executeWithoutCache(BuildCacheStep.java:189)
        at org.gradle.internal.execution.steps.BuildCacheStep.lambda$execute$1(BuildCacheStep.java:75)
        at org.gradle.internal.Either$Right.fold(Either.java:175)
        at org.gradle.internal.execution.caching.CachingState.fold(CachingState.java:62)
        at org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:73)
        at org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:48)
        at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:46)
        at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:35)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:75)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$2(SkipUpToDateStep.java:53)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:53)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:35)
        at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:37)
        at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:27)
        at org.gradle.internal.execution.steps.ResolveIncrementalCachingStateStep.executeDelegate(ResolveIncrementalCachingStateStep.java:49)
        at org.gradle.internal.execution.steps.ResolveIncrementalCachingStateStep.executeDelegate(ResolveIncrementalCachingStateStep.java:27)
        at org.gradle.internal.execution.steps.AbstractResolveCachingStateStep.execute(AbstractResolveCachingStateStep.java:71) 
        at org.gradle.internal.execution.steps.AbstractResolveCachingStateStep.execute(AbstractResolveCachingStateStep.java:39) 
        at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:65)
        at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:36)
        at org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:107)
        at org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:56)
        at org.gradle.internal.execution.steps.AbstractCaptureStateBeforeExecutionStep.execute(AbstractCaptureStateBeforeExecutionStep.java:64)
        at org.gradle.internal.execution.steps.AbstractCaptureStateBeforeExecutionStep.execute(AbstractCaptureStateBeforeExecutionStep.java:43)
        at org.gradle.internal.execution.steps.AbstractSkipEmptyWorkStep.executeWithNonEmptySources(AbstractSkipEmptyWorkStep.java:125)
        at org.gradle.internal.execution.steps.AbstractSkipEmptyWorkStep.execute(AbstractSkipEmptyWorkStep.java:56)
        at org.gradle.internal.execution.steps.AbstractSkipEmptyWorkStep.execute(AbstractSkipEmptyWorkStep.java:36)
        at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38)
        at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:36)   
        at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:23)   
        at org.gradle.internal.execution.steps.HandleStaleOutputsStep.execute(HandleStaleOutputsStep.java:75)
        at org.gradle.internal.execution.steps.HandleStaleOutputsStep.execute(HandleStaleOutputsStep.java:41)
        at org.gradle.internal.execution.steps.AssignMutableWorkspaceStep.lambda$execute$0(AssignMutableWorkspaceStep.java:35)  
        at org.gradle.api.internal.tasks.execution.TaskExecution$4.withWorkspace(TaskExecution.java:289)
        at org.gradle.internal.execution.steps.AssignMutableWorkspaceStep.execute(AssignMutableWorkspaceStep.java:31)
        at org.gradle.internal.execution.steps.AssignMutableWorkspaceStep.execute(AssignMutableWorkspaceStep.java:22)
        at org.gradle.internal.execution.steps.ChoosePipelineStep.execute(ChoosePipelineStep.java:40)
        at org.gradle.internal.execution.steps.ChoosePipelineStep.execute(ChoosePipelineStep.java:23)
        at org.gradle.internal.execution.steps.ExecuteWorkBuildOperationFiringStep.lambda$execute$2(ExecuteWorkBuildOperationFiringStep.java:67)
        at org.gradle.internal.execution.steps.ExecuteWorkBuildOperationFiringStep.execute(ExecuteWorkBuildOperationFiringStep.java:67)
        at org.gradle.internal.execution.steps.ExecuteWorkBuildOperationFiringStep.execute(ExecuteWorkBuildOperationFiringStep.java:39)
        at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:46)
        at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:34)
        at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:48)
        at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:35)
        at org.gradle.internal.execution.impl.DefaultExecutionEngine$1.execute(DefaultExecutionEngine.java:64)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:127)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:116)      
        at org.gradle.api.internal.tasks.execution.ProblemsTaskPathTrackingTaskExecuter.execute(ProblemsTaskPathTrackingTaskExecuter.java:41)
        at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:51)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57) 
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:74)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)       
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)       
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:210)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:205)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:67)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:167)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:60)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:54)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
        at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:42)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:331)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:318)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.lambda$execute$0(DefaultTaskExecutionGraph.java:314)
        at org.gradle.internal.operations.CurrentBuildOperationRef.with(CurrentBuildOperationRef.java:85)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:314)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:303)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:459)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:376)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
        at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)


Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

For more on this, please refer to https://docs.gradle.org/8.14.2/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.

BUILD FAILED in 1s
23 actionable tasks: 3 executed, 20 up-to-date

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <!-- OpenGL ES 2.0 -->
    <uses-feature android:glEsVersion="0x00020000" />

    <!-- Touchscreen support -->
    <uses-feature
        android:name="android.hardware.touchscreen"
        android:required="false" />

    <!-- Game controller support -->
    <uses-feature
        android:name="android.hardware.bluetooth"
        android:required="false" />
    <uses-feature
        android:name="android.hardware.gamepad"
        android:required="false" />
    <uses-feature
        android:name="android.hardware.usb.host"
        android:required="false" />

    <!-- External mouse input events -->
    <uses-feature
        android:name="android.hardware.type.pc"
        android:required="false" />

    <!-- Allow access to the vibrator -->
    <uses-permission android:name="android.permission.VIBRATE" />

    <application
        android:allowBackup="true"
        android:icon="@android:drawable/sym_def_app_icon"
        android:label="@string/app_name"
        android:roundIcon="@android:drawable/sym_def_app_icon"
        android:supportsRtl="true"
        android:hardwareAccelerated="true"
        tools:targetApi="31">
        <activity
            android:name="com.example.iluma.MainActivity"
            android:exported="true"
            android:label="@string/app_name"
            android:configChanges="layoutDirection|locale|orientation|uiMode|screenLayout|screenSize|smallestScreenSize|keyboard|keyboardHidden|navigation"
            android:preferMinimalPostProcessing="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
            </intent-filter>
        </activity>
    </application>

</manifest>

build.gradle (app-level)

plugins {
    id 'com.android.application'
}

android {
    namespace "com.example.iluma"
    compileSdk 35

    defaultConfig {
        applicationId 'com.example.iluma'
        minSdk 21
        targetSdk 35
        versionCode 1
        versionName '1.0'

        externalNativeBuild {
            cmake {
                arguments '-DANDROID_STL=c++_shared', '-DDOWNLOAD_DEPENDENCIES=OFF'
                abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
                // abiFilters 'arm64-v8a'
            }
        }
    }

    externalNativeBuild {
        cmake {
            path 'src/main/cpp/CMakeLists.txt'
        }
    }

    buildTypes {
        release {
            minifyEnabled false
        }
    }
    buildFeatures {
        prefab true
    }
}

dependencies {
    implementation files('libs/SDL3-3.2.16.aar')
}

main.cpp

#include <SDL3/SDL.h>
#include <SDL3/SDL_main.h>

#include <bgfx/bgfx.h>
#include <bgfx/platform.h>
#include <iostream>

#include <chrono>
#if defined(__APPLE__)
#include "TargetConditionals.h"
#endif

#ifdef __ANDROID__
#include <android_native_app_glue.h>
#include <android/log.h>
#endif

#define SCREEN_WIDTH 1280
#define SCREEN_HEIGHT 720

int main(int argc, char *argv[])
{

	if (SDL_Init(SDL_INIT_VIDEO) == false)
	{
		SDL_Log("SDL_Init failed: %s", SDL_GetError());
		return 1;
	}
	SDL_Log("SDL_Init succeded");

	SDL_Window *window = SDL_CreateWindow("BGFX + SDL3 Window",
																				SCREEN_WIDTH, SCREEN_HEIGHT, 0);
	if (!window)
	{
		SDL_Log("SDL_CreateWindow failed: %s", SDL_GetError());
		SDL_Quit();
		return 1;
	}
	SDL_Log("SDL_CreateWindow succeded");

	bgfx::PlatformData pd;

#if defined(__ANDROID__)
	pd.nwh = (void*)SDL_GetPointerProperty(SDL_GetWindowProperties(window)SDL_PROP_WINDOW_ANDROID_WINDOW_POINTER, NULL); // Use the native window from the Android app
	pd.ndt = nullptr;
#elif defined(_WIN32)

	pd.nwh = (void *)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_WIN32_HWND_POINTER, nullptr);
	pd.ndt = nullptr;
#elif defined(__linux__)
	pd.nwh = (void *)(uintptr_t)SDL_GetNumberProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_X11_WINDOW_NUMBER, nullptr);
	pd.ndt = (void *)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_X11_DISPLAY_POINTER, nullptr);

// I cannot test if it works on macOS, so I will comment it out for now. UPDATE: I can build, but not run it
#elif defined(__APPLE__)

	#if TARGET_OS_OSX
		pd.nwh = (void *)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_COCOA_WINDOW_POINTER, nullptr);
		pd.ndt = nullptr;
	#elif TARGET_OS_IPHONE
		// iOS does not use bgfx in the same way, so we don't set nwh or ndt here.
		pd.nwh = (void*)SDL_GetPointerProperty(SDL_GetWindowProperties(window),SDL_PROP_WINDOW_UIKIT_WINDOW_POINTER, nullptr);
		pd.ndt = nullptr; // No native display type in iOS

	#endif

#elif defined(__EMSCRIPTEN__)
	// Emscripten uses a different approach, so we don't set nwh or ndt here.
	pd.nwh = (void*)"canvas"; // No native window handle in Emscripten
	pd.ndt = nullptr; // No native display type in Emscripten

#else
	SDL_Log("Unsupported platform for bgfx initialization.");
	SDL_DestroyWindow(window);
	SDL_Quit();
	return 1;
#endif

	SDL_Log("Setting PlatformData for bgfx...");
	bgfx::setPlatformData(pd);
	SDL_Log("Setting PlatformData for bgfx succeded..\nInitializing bgfx...");

	bgfx::Init init;
	init.type = bgfx::RendererType::Count;
	init.platformData.nwh = pd.nwh;
	init.platformData.ndt = pd.ndt;
	init.resolution.width = SCREEN_WIDTH;
	init.resolution.height = SCREEN_HEIGHT;
	init.resolution.reset = BGFX_RESET_VSYNC;
	init.debug = true;  // Enable debug mode

	SDL_Log("Initializing bgfx succeded...");

	if (!bgfx::init(init))
	{
		SDL_Log("bgfx::init unsuccessful");
		return 1;
	}

	SDL_Log("bgfx::init succeded");
	SDL_Log("Setting up bgfx debug and clear view...");

	bgfx::setDebug(BGFX_DEBUG_TEXT);
	bgfx::setViewClear(0, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH, 0x303030FF, 1.0f, 0);

	bool running = true;
	SDL_Event event;

	auto lastTime = std::chrono::steady_clock::now();
	int frames = 0;
	float fps = 0.0f;

	bgfx::RendererType::Enum renderBackend = bgfx::getRendererType();

	const char *renderBackendStr = bgfx::getRendererName(renderBackend);

	auto start = std::chrono::steady_clock::now();
	SDL_Log("Main loop incomig, render backend: %s", renderBackendStr);

	while (running)
	{
		while (SDL_PollEvent(&event))
		{
			switch (event.type)
			{
			case SDL_EVENT_QUIT:
			case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
				running = false;
				break;
			}
		}
		if (!running)
			break; // break the frame loop before calling bgfx stuff

		bgfx::setViewRect(0, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
		bgfx::touch(0);
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "fps: %.2f", fps);
		bgfx::dbgTextPrintf(0, 2, 0x2f, "Render Backend: %s", renderBackendStr);
		bgfx::frame();

		frames++;
		auto now = std::chrono::steady_clock::now();
		std::chrono::duration<float> elapsed = now - lastTime;

		if (elapsed.count() >= 1.0f)
		{
			fps = frames / elapsed.count();
			frames = 0;
			lastTime = now;
		}
		SDL_Delay(16);  // Simulate frame delay (60 FPS)

		if (std::chrono::duration_cast<std::chrono::seconds>(now - start).count() > 20) {
			running = false; // Stop after 20 seconds for upload
		}
	}
	bgfx::frame();
	bgfx::shutdown();

	SDL_DestroyWindow(window);
	SDL_Quit();

	SDL_Log("shutdown succeded");

	return 0;
}

MainActivty.java:

package com.example.iluma;

import org.libsdl.app.SDLActivity;

public class MainActivity extends SDLActivity {
    @Override
    protected String[] getLibraries() {
        return new String[] { "SDL3", "iLuma" };
    }
}

Let me know if anyone needs more details

[madebr]

Can you try an older SDL3 release?

Unsupported class file major version 68 points at the SDL3 java classes being compiled with a Java version that's too new for your system.

[mozbeel]

plugins {
id 'com.android.application'
}

android {
namespace "com.example.iluma"
compileSdk 35

defaultConfig {
    applicationId 'com.example.iluma'
    minSdk 21
    targetSdk 35
    versionCode 1
    versionName '1.0'

    externalNativeBuild {
        cmake {
            arguments '-DANDROID_STL=c++_shared', '-DDOWNLOAD_DEPENDENCIES=OFF'
            abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
            // abiFilters 'arm64-v8a'
        }
    }
}

externalNativeBuild {
    cmake {
        path 'src/main/cpp/CMakeLists.txt'
    }
}

buildTypes {
    release {
        minifyEnabled false
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}
buildFeatures {
    prefab true
}

}

dependencies {
implementation files('libs/SDL3-3.2.0.aar')
}

I did both downgrade the java version to 8 and downgrading the SDL3 version to 3.2.0 but I think it still fails with same error

[madebr]

We're using JDK 11 for building the Android archives.
I remember seeing a similar error you're seeing when using an older JDK: the android classes themselves were compiled with a newer JDK.

[mozbeel]

• Where:
  Build file 'C:\Users\moz04\Desktop\GameDevelopment\iLuma\app\build.gradle' line: 2

• What went wrong:
  An exception occurred applying plugin request [id: 'com.android.application']

Failed to apply plugin 'com.android.internal.application'.
Android Gradle plugin requires Java 17 to run. You are currently using Java 11.
Your current JDK is located in C:\Program Files\Eclipse Adoptium\jdk-11.0.27.6-hotspot
You can try some of the following options:
- changing the IDE settings.
- changing the JAVA_HOME environment variable.
- changing org.gradle.java.home in gradle.properties.

• Try:

Run with --stacktrace option to get the stack trace.
Run with --info or --debug option to get more log output.
Run with --scan to get full insights.
Get more help at https://help.gradle.org.

I'm using JDK 11 now (Adoptium)

[madebr]

We're using an older JDK for maximum compatibility.
As a user, you can (and probably should) use the latest JDK.

I just updated SDL_helloworld's gradle project to the latest 3.2.16 release. All tests remained green..

[mozbeel]

So, I should use JDK 17? While using JDK 24 it didnt work out. What JDK version have you used for the SDL_HelloWorld project?

[madebr]

It should work with any JDK compatible with your gradle and >= 11.

I also see this error in your log:

Execution failed for task ':app:configureCMakeDebug[arm64-v8a]'.

Is CMake configuration succeeding?

[mozbeel]

No, after using JDK 17 this error showed up (I didn't see any error for SDL3 itself):

> Task :app:configureCMakeDebug[arm64-v8a]
C/C++: CMake Error at CMakeLists.txt:73 (find_package):
C/C++:   Could not find a package configuration file provided by "bgfx.cmake" with
C/C++:   any of the following names:
C/C++:     bgfx.cmakeConfig.cmake
C/C++:     bgfx.cmake-config.cmake
C/C++:   Add the installation prefix of "bgfx.cmake" to CMAKE_PREFIX_PATH or set
C/C++:   "bgfx.cmake_DIR" to a directory containing one of the above files.  If
C/C++:   "bgfx.cmake" provides a separate development package or SDK, be sure it has
C/C++:   been installed.

> Task :app:configureCMakeDebug[arm64-v8a] FAILED

[Incubating] Problems report is available at: file:///C:/Users/moz04/Desktop/GameDevelopment/iLuma/build/reports/problems/problems-report.html

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:configureCMakeDebug[arm64-v8a]'.
> [CXX1429] error when building with cmake using C:\Users\moz04\Desktop\GameDevelopment\iLuma\app\src\main\cpp\CMakeLists.txt: -- The C compiler identification is Clang 18.0.1
  -- The CXX compiler identification is Clang 18.0.1
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Check for working C compiler: C:/Users/moz04/AppData/Local/Android/Sdk/ndk/27.0.12077973/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe - skipped
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Detecting CXX compiler ABI info
  -- Detecting CXX compiler ABI info - done
  -- Check for working CXX compiler: C:/Users/moz04/AppData/Local/Android/Sdk/ndk/27.0.12077973/toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe - skipped
  -- Detecting CXX compile features
  -- Detecting CXX compile features - done
  -- Configuring incomplete, errors occurred!
  See also "C:/Users/moz04/Desktop/GameDevelopment/iLuma/app/.cxx/Debug/15s6g3b1/arm64-v8a/CMakeFiles/CMakeOutput.log".

  C++ build system [configure] failed while executing:
      @echo off
      "C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\cmake\\3.22.1\\bin\\cmake.exe" ^
        "-HC:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\src\\main\\cpp" ^
        "-DCMAKE_SYSTEM_NAME=Android" ^
        "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON" ^
        "-DCMAKE_SYSTEM_VERSION=21" ^
        "-DANDROID_PLATFORM=android-21" ^
        "-DANDROID_ABI=arm64-v8a" ^
        "-DCMAKE_ANDROID_ARCH_ABI=arm64-v8a" ^
        "-DANDROID_NDK=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\ndk\\27.0.12077973" ^
        "-DCMAKE_ANDROID_NDK=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\ndk\\27.0.12077973" ^
        "-DCMAKE_TOOLCHAIN_FILE=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\ndk\\27.0.12077973\\build\\cmake\\android.toolchain.cmake" ^     
        "-DCMAKE_MAKE_PROGRAM=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\cmake\\3.22.1\\bin\\ninja.exe" ^
        "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\build\\intermediates\\cxx\\Debug\\15s6g3b1\\obj\\arm64-v8a" ^
        "-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=C:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\build\\intermediates\\cxx\\Debug\\15s6g3b1\\obj\\arm64-v8a" ^
        "-DCMAKE_BUILD_TYPE=Debug" ^
        "-DCMAKE_FIND_ROOT_PATH=C:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\.cxx\\Debug\\15s6g3b1\\prefab\\arm64-v8a\\prefab" ^      
        "-BC:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\.cxx\\Debug\\15s6g3b1\\arm64-v8a" ^
        -GNinja ^
        "-DANDROID_STL=c++_shared" ^
        "-DDOWNLOAD_DEPENDENCIES=OFF"
    from C:\Users\moz04\Desktop\GameDevelopment\iLuma\app
  CMake Error at CMakeLists.txt:73 (find_package):
    Could not find a package configuration file provided by "bgfx.cmake" with
    any of the following names:

      bgfx.cmakeConfig.cmake
      bgfx.cmake-config.cmake

    Add the installation prefix of "bgfx.cmake" to CMAKE_PREFIX_PATH or set
    "bgfx.cmake_DIR" to a directory containing one of the above files.  If
    "bgfx.cmake" provides a separate development package or SDK, be sure it has
    been installed. : com.android.ide.common.process.ProcessException: -- The C compiler identification is Clang 18.0.1
  -- The CXX compiler identification is Clang 18.0.1
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Check for working C compiler: C:/Users/moz04/AppData/Local/Android/Sdk/ndk/27.0.12077973/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe - skipped
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Detecting CXX compiler ABI info
  -- Detecting CXX compiler ABI info - done
  -- Check for working CXX compiler: C:/Users/moz04/AppData/Local/Android/Sdk/ndk/27.0.12077973/toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe - skipped
  -- Detecting CXX compile features
  -- Detecting CXX compile features - done
  -- Configuring incomplete, errors occurred!
  See also "C:/Users/moz04/Desktop/GameDevelopment/iLuma/app/.cxx/Debug/15s6g3b1/arm64-v8a/CMakeFiles/CMakeOutput.log".

  C++ build system [configure] failed while executing:
      @echo off
      "C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\cmake\\3.22.1\\bin\\cmake.exe" ^
        "-HC:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\src\\main\\cpp" ^
        "-DCMAKE_SYSTEM_NAME=Android" ^
        "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON" ^
        "-DCMAKE_SYSTEM_VERSION=21" ^
        "-DANDROID_PLATFORM=android-21" ^
        "-DANDROID_ABI=arm64-v8a" ^
        "-DCMAKE_ANDROID_ARCH_ABI=arm64-v8a" ^
        "-DANDROID_NDK=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\ndk\\27.0.12077973" ^
        "-DCMAKE_ANDROID_NDK=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\ndk\\27.0.12077973" ^
        "-DCMAKE_TOOLCHAIN_FILE=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\ndk\\27.0.12077973\\build\\cmake\\android.toolchain.cmake" ^     
        "-DCMAKE_MAKE_PROGRAM=C:\\Users\\moz04\\AppData\\Local\\Android\\Sdk\\cmake\\3.22.1\\bin\\ninja.exe" ^
        "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\build\\intermediates\\cxx\\Debug\\15s6g3b1\\obj\\arm64-v8a" ^
        "-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=C:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\build\\intermediates\\cxx\\Debug\\15s6g3b1\\obj\\arm64-v8a" ^
        "-DCMAKE_BUILD_TYPE=Debug" ^
        "-DCMAKE_FIND_ROOT_PATH=C:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\.cxx\\Debug\\15s6g3b1\\prefab\\arm64-v8a\\prefab" ^      
        "-BC:\\Users\\moz04\\Desktop\\GameDevelopment\\iLuma\\app\\.cxx\\Debug\\15s6g3b1\\arm64-v8a" ^
        -GNinja ^
        "-DANDROID_STL=c++_shared" ^
        "-DDOWNLOAD_DEPENDENCIES=OFF"
    from C:\Users\moz04\Desktop\GameDevelopment\iLuma\app
  CMake Error at CMakeLists.txt:73 (find_package):
    Could not find a package configuration file provided by "bgfx.cmake" with
    any of the following names:

      bgfx.cmakeConfig.cmake
      bgfx.cmake-config.cmake

    Add the installation prefix of "bgfx.cmake" to CMAKE_PREFIX_PATH or set
    "bgfx.cmake_DIR" to a directory containing one of the above files.  If
    "bgfx.cmake" provides a separate development package or SDK, be sure it has
    been installed.

My CMakeLists.txt:

cmake_minimum_required(VERSION 3.12)
project(iLuma)

option(DOWNLOAD_DEPENDENCIES "Download dependencies" TRUE)
option(IOS "Build for iOS" OFF)

# if(ANDROID)

    # set(BX_PLATFORM_ANDROID ON CACHE BOOL "Target is Android" FORCE)
    # set(BX_ARCH "${ANDROID_ABI}" CACHE STRING "Target Arch for BX" FORCE)
    # set(BGFX_CONFIG_RENDERER_GLES ON CACHE BOOL "Use GLES for Android" FORCE)
    # set(BGFX_BUILD_SHADERC OFF CACHE BOOL "" FORCE)
    # set(BX_AMALGAMATED OFF CACHE BOOL "" FORCE)
    # set(BGFX_CUSTOM_TARGETS ON CACHE BOOL "" FORCE)  # <--- this is critical!

    # set(SDL3CPU ${ANDROID_ABI} CACHE STRING "Target CPU for SDL3" FORCE)
# endif()

if (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
    message(STATUS "Configuring for Emscripten/WebAssembly")

  # Tell bx/bgfx that threading is not supported
    set(BX_CONFIG_SUPPORTS_THREADING       OFF CACHE BOOL "" FORCE)
    set(BGFX_CONFIG_MULTITHREADED         OFF CACHE BOOL "" FORCE)  # disable bgfx’s worker thread :contentReference[oaicite:0]{index=0}
    set(BGFX_CONFIG_RENDERER_THREAD       OFF CACHE BOOL "" FORCE)

    # Use bgfx.cmake’s custom‐targets mode to avoid examples/tools
    set(BGFX_CUSTOM_TARGETS               ON  CACHE BOOL "" FORCE)
endif()


if (NOT ANDROID)
    set(SDL_DISABLE_INSTALL ON CACHE BOOL "" FORCE)
    set(SDL3_TEST OFF CACHE BOOL "" FORCE)
    set(SDL_STATIC ON CACHE BOOL "" FORCE)
    set(SDL_SHARED OFF CACHE BOOL "" FORCE)
endif()

if(APPLE AND IOS)
    message(STATUS "Configuring for iOS (device build)")
    set(CMAKE_OSX_SYSROOT iphoneos CACHE STRING "" FORCE)
    set(CMAKE_OSX_ARCHITECTURES arm64 CACHE STRING "" FORCE)
    set(CMAKE_OSX_DEPLOYMENT_TARGET 12.0 CACHE STRING "" FORCE)
endif()

set(BGFX_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
set(BGFX_BUILD_TOOLS OFF CACHE BOOL "" FORCE)
set(BGFX_INSTALL OFF CACHE BOOL "" FORCE)

if(DOWNLOAD_DEPENDENCIES)
    # FetchContent downloads and configures dependencies
    include(FetchContent)
    FetchContent_Declare(
        SDL3
        GIT_REPOSITORY "https://github.com/libsdl-org/SDL.git"
        GIT_TAG "main"
        EXCLUDE_FROM_ALL
    )
    FetchContent_MakeAvailable(SDL3)

    FetchContent_Declare(
        bgfx.cmake
        GIT_REPOSITORY "https://github.com/bkaradzic/bgfx.cmake.git"
        GIT_TAG "master"
        EXCLUDE_FROM_ALL
    )
    FetchContent_MakeAvailable(bgfx.cmake)
else()
    # find_package looks for already-installed system packages.
    # Configure with `-DCMAKE_PREFIX_PATH="/path/to/package1;/path/to/package2"`
    # to add search paths.
    find_package(SDL3 CONFIG REQUIRED)
    find_package(bgfx.cmake CONFIG REQUIRED)
endif()

# Add your main game/app
file(GLOB SOURCES "*.cpp")
file(GLOB HEADERS "headers/*.h" "headers/*.hpp")


if(ANDROID)
    add_library(iLuma SHARED ${SOURCES} ${HEADERS})
else()
    add_executable(iLuma ${SOURCES} ${HEADERS})

endif()

target_include_directories(iLuma
    PRIVATE
        "${CMAKE_CURRENT_SOURCE_DIR}/headers"
)

if (ANDROID)
    target_link_libraries(iLuma PRIVATE
        bgfx
        bimg
        bx
        SDL3::SDL3
        native_app_glue
        android
        log
        GLESv2
        EGL
        OpenSLES
        m
        atomic
    )
else()
    target_compile_definitions(iLuma PRIVATE SDL_STATIC)
    target_link_libraries(iLuma
        PRIVATE
            SDL3::SDL3
            bgfx
            bimg
            bx
    )
endif()

if (WIN32)
    set_property(TARGET iLuma PROPERTY WIN32_EXECUTABLE TRUE)

endif()

if(EMSCRIPTEN)
    # Create a html webpage
    target_link_options(iLuma PRIVATE
        "-sINITIAL_MEMORY=67108864"
        "-sALLOW_MEMORY_GROWTH=1"
        "-sNO_EXIT_RUNTIME=1"
        "-sASSERTIONS=0"
        "--shell-file=${CMAKE_CURRENT_SOURCE_DIR}/web/base.html"
    )   
    set_property(TARGET iLuma PROPERTY SUFFIX ".html")
endif()

[madebr]

Yeah, the SDL3 aar archive satisfies find_package(SDL3 CONFIG REQUIRED) but you need to provide bgfx yourself.
Easiest for you is to configure with -DDOWNLOAD_DEPENDENCIES=ON and don't use the prebuilt aar.

[mozbeel]

I think it's bgfx.cmake itself but I don't know how to fix it. Could you help me with that, too, please?

[mozbeel]

Ok, thanks a lot for now

[mozbeel]

It still failed but it's bgfx.cmake itself, so... yeah. Thank you anyway for help for now

[mozbeel]

It built succesfully! But it's immedeatly crashing... perhaps I need to do something else than this:

#include <SDL3/SDL_main.h>
#include <app.hpp>

App app;

#ifdef __EMSCRIPTEN__
  void emscriptenMainLoop() {
    if (!app.running) {
      emscripten_cancel_main_loop();
      app.shutdown();
      return;
    }
    app.mainLoop();
  } 
#endif

int main(int argc, char *argv[])
{
	app = App();
	if (!app.initialize())
	{
		SDL_Log("App initialization failed");
		return 1;
	}

#ifdef __EMSCRIPTEN__
	emscripten_set_main_loop(emscriptenMainLoop, 0, 1);
#else
	while (app.running)
	{
		app.mainLoop();
	}
#endif
	app.shutdown();

	return 0;
}

It's not even showing any logs unlike I've defined with __android_log_print().
I think it's not getting into the main() function itself

[madebr]

SDL on Android is only usable when/after SDL_main/main is called.
The global App app constructor should not use any SDL function.

What if you allocate it on the heap instead? By doing app = new App in main?
(Change the global variable withApp *app)