iOS compile fails

[rafbanaan]

When I compile the code I receive the following error:

/{personalpath}/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_unity_widget-0.1.6+2/ios/Classes/UnityUtils.mm:55:10: error: no visible @interface for 'UnityFramework' declares the selector 'frameworkWarmup:argv:'
        [ufw frameworkWarmup: g_argc argv: g_argv];
         ~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
    1 error generated.

My edited files are as follows:
Runner-Bridging-Header.h

#import "GeneratedPluginRegistrant.h"
#import "UnityUtils.h"

AppDelegate.swift

import UIKit
import Flutter

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?
  ) -> Bool {
    InitArgs(CommandLine.argc, CommandLine.unsafeArgv)
    GeneratedPluginRegistrant.register(with: self)
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }
}

[lorant-csonka-ICE]

The example project's Unity editor scripts are not updated yet in the example (there is already a PR for that #42).
Replace the example/unity/DemoApp/Assets/Editor/ located scripts with thescripts/Editor/ located ones, and try to rebuild the project in unity with the Flutter/Export IOS (Unity 2019.3.*) button.

[rafbanaan]

Ok, will give it a try.

[rafbanaan]

The above error is gone, but I do get the following now:

ld: warning: directory not found for option '-F/{localpath}/gf_app/ios/Pods/../UnityExport'
ld: warning: directory not found for option '-F/{localpath}/gf_app/ios/Pods/../UnityExport'
Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_UnityAppController", referenced from:
      objc-class-ref in libflutter_unity_widget.a(FlutterUnityWidgetPlugin.o)
      objc-class-ref in libflutter_unity_widget.a(UnityUtils.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[lorant-csonka-ICE]

Great, have you tried to use it on a real device as well? (I had troubles with the simulator)

[rafbanaan]

Same issue

[juicycleff]

What issues are you guys having. I am now available. Free from alot of projects :)

[reinkepatrick]

I get a similar error when compiling.

no visible @interface for 'UnityFramework' declares the selector 'frameworkWarmup:argv:' [ufw frameworkWarmup: g_argc argv: g_argv];

[sandrush73]

I am having the same issue i have it connected to a device, any solution for this ..?

Running Xcode build...                                                  
Xcode build done.                                            1.9s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **


Xcode's output:
↳
    === BUILD TARGET flutter_unity_widget OF PROJECT Pods WITH CONFIGURATION Debug ===
    /Users/Downloads/flutter-unity-view-widget-master/ios/Classes/UnityUtils.mm:55:10:
    error: no visible @interface for 'UnityFramework' declares the selector 'frameworkWarmup:argv:'
        [ufw frameworkWarmup: g_argc argv: g_argv];
         ~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
    1 error generated.

Could not build the precompiled application for the device.

Error launching application on iPhone

[sandrush73]

Hi reinkepatrick

Were you able to have a successful xcode build or are you having any issues when you try just building it from the workspace not using flutter run ..?

[reinkepatrick]

@sandrush73 Sadly not, I stopped trying.

[sandrush73]

@reinkepatrick can you check if you are getting this error when you try to build from the workspace, if you are still on it ...!

Error

Showing All Errors Only
/Users/Desktop/Rear/flutter-unity-view-widget-master/ios/Classes/UnityUtils.mm:55:10: No visible @interface for 'UnityFramework' declares the selector 'frameworkWarmup:argv:'

[reinkepatrick]

@sandrush73 I had the same error before, do you use Unity 2019.3?

[sandrush73]

Yes and my xcode Version 11.0 (11A420a)

[reinkepatrick]

Did you use pod install and your flutter doctor is good?

[sandrush73]

Yes i did initially i had some issue with manifest and podfile.lock but when i updated my pods i had them cleared

Flutter Doctor

`-MacBook-Pro:example arpitasaxena$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.9.1+hotfix.4, on Mac OS X 10.14.5 18F132, locale en-GB)

[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
✗ Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[✓] Xcode - develop for iOS and macOS (Xcode 11.0)
[!] Android Studio (version 3.4)
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] Connected device (1 available)

! Doctor found issues in 2 categories.`

[reinkepatrick]

Then I'm afraid I can't help you. Sorry. I think I just set up the project anew.

[sandrush73]

when you are creating a unity export do u have below files in your assets by chance

UnityMessageManager.cs
JsonDotNet
link.xml

[reinkepatrick]

I deleted UnityMessageManager.cs

[sandrush73]

ya i did the same too if not i was getting missing Unity/UnityFramework.h missing when i build

[reinkepatrick]

You added #import "UnityUtils.h" to your Runner/Runner/Runner-Bridging-Header.h?

[sandrush73]

yep i did and also tried using custom config flie like this

`//
// UnityConfig.xcconfig
// rnunitydemo
//
// Created by xzper on 2018/3/6.
// Copyright © 2018年 Facebook. All rights reserved.
//
UNITY_SCRIPTING_BACKEND = il2cpp;
GCC_PREFIX_HEADER = $(SRCROOT)/UnityExport/Classes/Prefix.pch;

HEADER_SEARCH_PATHS = $(inherited) "$(SRCROOT)/UnityExport/Classes" "$(SRCROOT)/UnityExport/Classes/Unity" "$(SRCROOT)/UnityExport/Classes/Native" "$(SRCROOT)/UnityExport/Libraries" "$(SRCROOT)/UnityExport/Libraries/libil2cpp/include" ${PODS_HEADER_PATHS};

LIBRARY_SEARCH_PATHS = $(inherited) "$(SRCROOT)/UnityExport/Libraries" "$(SRCROOT)/UnityExport/Libraries/libil2cpp/include" ${PODS_LIBRARY_PATHS};

// If using .net 4.0 in Unity, append -DNET_4_0 to OTHER_CFLAGS
OTHER_CFLAGS = $(inherited) -DINIT_SCRIPTING_BACKEND=1 -fno-strict-overflow -DRUNTIME_IL2CPP=1;

OTHER_LDFLAGS = $(inherited) -weak-lSystem -weak_framework CoreMotion -weak_framework GameKit -weak_framework iAd -framework AVFoundation -framework AudioToolbox -framework CFNetwork -framework CoreGraphics -framework CoreLocation -framework CoreMedia -framework CoreVideo -framework Foundation -framework MediaPlayer -framework MediaToolbox -framework Metal -framework OpenAL -framework OpenGLES -framework QuartzCore -framework SystemConfiguration -framework UIKit -liconv.2 -liPhone-lib -lil2cpp ${PODS_LIBRARIES};

CLANG_CXX_LANGUAGE_STANDARD = c++0x;
CLANG_CXX_LIBRARY = libc++;
CLANG_ENABLE_MODULES = NO;
CLANG_WARN_BOOL_CONVERSION = NO;
CLANG_WARN_CONSTANT_CONVERSION = NO;
CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES;
CLANG_WARN_EMPTY_BODY = NO;
CLANG_WARN_ENUM_CONVERSION = NO;
CLANG_WARN_INT_CONVERSION = NO;
CLANG_WARN_OBJC_ROOT_CLASS = YES;
CLANG_WARN_UNREACHABLE_CODE = NO;
CLANG_WARN__DUPLICATE_METHOD_MATCH = NO;
GCC_C_LANGUAGE_STANDARD = c99;
GCC_ENABLE_OBJC_EXCEPTIONS = NO;
GCC_ENABLE_CPP_RTTI = NO;
GCC_PRECOMPILE_PREFIX_HEADER = YES;
GCC_THUMB_SUPPORT = NO;
GCC_USE_INDIRECT_FUNCTION_CALLS = NO;
GCC_WARN_64_TO_32_BIT_CONVERSION = NO;
GCC_WARN_64_TO_32_BIT_CONVERSION[arch=*64] = YES;
GCC_WARN_ABOUT_RETURN_TYPE = YES;
GCC_WARN_UNDECLARED_SELECTOR = NO;
GCC_WARN_UNINITIALIZED_AUTOS = NO;
GCC_WARN_UNUSED_FUNCTION = NO;

ENABLE_BITCODE = NO;

DEAD_CODE_STRIPPING = YES;
`

[reinkepatrick]

I never used a custom config.

[sandrush73]

any change to runner configuration ..?

[reinkepatrick]

No

[sandrush73]

@reinkepatrick are you still working on this by chance .?

[reinkepatrick]

@sandrush73 no I stopped trying.

[sandrush73]

can you check if you have UnityFramework within your pod> Framework folder

[reinkepatrick]

I've already deleted the project, I'm sorry.

[sandrush73]

@reinkepatrick, i did solve it by adding

- (void)frameworkWarmup:(int)argc argv:(char*[])argv; in UnityFramework.h . but i am having a different error now

[krispypen]

Hi @rafbanaan, @reinkepatrick , can you test it again after PR #61 is merged? I updated the samples and also did some fixes in the unity export script.

[juicycleff]

@reinkepatrick @rafbanaan the PR from @krispypen has been merged and release