Namespace conflict in 1.8.1 prevents Android builds with AGP 9.0

[abd3lraouf]

PowerSync 1.8.1 has a namespace conflict between its Android AAR modules that prevents successful Android app builds when using Android Gradle Plugin (AGP) 9.0+. The com.powersync:core-android-debug and com.powersync:common-android-debug modules both declare the same namespace com.powersync, which violates AGP 9.0's strict namespace uniqueness requirement.

Environment

• PowerSync Version: 1.8.1
• Android Gradle Plugin (AGP): 9.0.0-beta01
• Gradle: 9.2.0
• Kotlin: 2.2.21
• Kotlin Multiplatform: Yes
• Build Configuration: Kotlin Multiplatform with Android and iOS targets

Steps to Reproduce

1. Create a Kotlin Multiplatform project with an Android target
2. Upgrade to AGP 9.0.0-beta01 or later
3. Add PowerSync dependencies:

   implementation("com.powersync:core:1.8.1")
   implementation("com.powersync:connector-supabase:1.8.1")

4. Attempt to build the Android app: ./gradlew :app:android:assembleDebug

Expected Behavior

The Android app should build successfully with all PowerSync modules included.

Actual Behavior

Build fails with manifest merger error:

> Task :app:android:processDebugMainManifest FAILED

[com.powersync:core-android-debug:1.8.1] /Users/.../com.powersync/core-android-debug/1.8.1/.../AndroidManifest.xml Error:
	Namespace 'com.powersync' is used in multiple modules and/or libraries:
	  - com.powersync:core-android-debug:1.8.1
	  - com.powersync:common-android-debug:1.8.1

	Please ensure that all modules and libraries have a unique namespace.
	For more information, See https://developer.android.com/studio/build/configure-app-module#set-namespace

/path/to/app/AndroidManifest.xml Error:
	Validation failed, exiting

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:android:processDebugMainManifest'.
> Manifest merger failed with multiple errors, see logs

repro project: abd3lraouf/PowersyncRepro

Dependency Tree Analysis

Running ./gradlew :app:android:dependencies --configuration debugRuntimeClasspath shows:

+--- com.powersync:core:1.8.1
|    \--- com.powersync:core-android-debug:1.8.1
|         +--- com.powersync:powersync-sqlite-core:0.4.8
|         +--- com.powersync:common:1.8.1
|         |    \--- com.powersync:common-android-debug:1.8.1  // <-- Same namespace

Both core-android-debug and common-android-debug AAR files contain AndroidManifest.xml with:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.powersync">  <!-- Same namespace -->

Root Cause

AGP 9.0 introduced stricter namespace validation as part of the unified plugin architecture. Each Android library module must have a unique namespace. PowerSync's current architecture has:

• com.powersync:core-android-debug → namespace: com.powersync
• com.powersync:common-android-debug → namespace: com.powersync

This worked in AGP 8.x but fails in AGP 9.0.

Proposed Solutions

Option 1: Use Module-Specific Namespaces (Recommended)

Update the namespace for each module to be unique:

• core-android-debug → com.powersync.core
• common-android-debug → com.powersync.common

Option 2: Consolidate Modules

If the modules don't need separate manifests, consider consolidating them into a single AAR.

Option 3: Use Custom Package Names

Use AGP's namespace DSL to set distinct namespaces:

// In core module's build.gradle.kts
android {
    namespace = "com.powersync.core"
}

// In common module's build.gradle.kts
android {
    namespace = "com.powersync.common"
}

Would Appreciate

• Confirmation of plans to fix this in an upcoming release
• Estimated timeline for a fix
• Any official workarounds while waiting for the fix

Thank you for the excellent library! Looking forward to using it with AGP 9.0.

[stevensJourney]

Thanks for the report!

I believe we should support AGP 9.0. I don't have any current official workarounds for this at the moment. We'll try and get this fixed in the next release. A rough estimate of a timeline may be in the next 1-2 weeks.