Xamarin.AndroidX.Activity: androidx.compose.runtime.Immutable is defined multiple times

[leonardbarbu]

Android framework version

net10.0-android (Preview)

Affected platform version

VS 2026 18.1.1, .NET 10.0.101, workload 10.0.101.1

Description

Hello,
I have updated to the current version of Xamarin.Firebase.Messaging 125.0.1.1, which adds as transitive package Xamarin.AndroidX.Activity 1.12.2.1, (...) which adds as transitive packages:

• Xamarin.AndroidX.Compose.Runtime.Annotation.Android.1.10.0.1
• Xamarin.AndroidX.Compose.Runtime.Annotation.Jvm.1.10.0.1

The Release build with R8 code shrinker enabled is producing the following error:
1>MSBUILD : java.exe error JAVA0000: Type androidx.compose.runtime.Immutable is defined multiple times:
xamarin.androidx.compose.runtime.annotation.android
xamarin.androidx.compose.runtime.annotation.jvm

Thanks

Steps to Reproduce

1. New MAUI app with .NET 10
2. Update all the packages (MAUI related)
3. Add Xamarin.Firebase.Messaging
4. Set in project properties -> Application -> Android Targets -> Minimum Android Target Framework -> Android 6.0 (API 23)
5. Check (enable) in project Properties -> Android -> Options -> R8 code shrinker

Did you find any workaround?

downgrade from 125.0.1.1 to 125.0.1

Relevant log output

1>MSBUILD : java.exe error JAVA0000: Error in C:\Users\LeonardBarbu\.nuget\packages\xamarin.androidx.compose.runtime.annotation.android\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\aar\runtime-annotation-android.aar:classes.jar:androidx/compose/runtime/Immutable.class:
1>MSBUILD : java.exe error JAVA0000: Type androidx.compose.runtime.Immutable is defined multiple times: C:\Users\LeonardBarbu\.nuget\packages\xamarin.androidx.compose.runtime.annotation.android\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\aar\runtime-annotation-android.aar:classes.jar:androidx/compose/runtime/Immutable.class, C:\Users\LeonardBarbu\.nuget\packages\xamarin.androidx.compose.runtime.annotation.jvm\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\jar\runtime-annotation-jvm.jar:androidx/compose/runtime/Immutable.class
1>MSBUILD : java.exe error JAVA0000: Compilation failed

[tipa]

Same issue here can also be reproduced by adding these two dependencies:

<PackageReference Include="Xamarin.AndroidX.Preference" Version="1.2.1.16" />
<PackageReference Include="Xamarin.Google.Android.Material" Version="1.13.0.1" />

This issue can also be reproduced in a non-MAUI app (dotnet new android)

[Pepsi1x1]

Worked around with the following references

  <ItemGroup Condition="'$(TargetFramework)' == 'net10.0-android'">
    <PackageReference Include="Xamarin.Firebase.Messaging" Version="125.0.1.1" />
    <PackageReference Include="Xamarin.AndroidX.Lifecycle.LiveData" Version="2.10.0.1" />
    <PackageReference Include="Xamarin.AndroidX.Fragment.Ktx" Version="1.8.9.1" />
    <PackageReference Include="Xamarin.AndroidX.Lifecycle.Common.Java8" Version="2.10.0.1" />
    <PackageReference Include="Xamarin.AndroidX.Lifecycle.Process" Version="2.10.0.1" />
    <!-- Exclude duplicate JVM packages to resolve D8 compilation conflicts with Android variants -->
    <PackageReference Include="Xamarin.AndroidX.Compose.Runtime.Annotation.Jvm" Version="1.10.0.1" ExcludeAssets="all" />
    <PackageReference Include="Xamarin.AndroidX.Datastore.Preferences.Core.Jvm" Version="1.2.0.1" ExcludeAssets="all" />
  </ItemGroup>

[markuspalme]

experiencing the same issue with a MAUI app - please let me know if additional details would help finding the issue.

[kerberosargos]

 <PackageReference Include="Xamarin.AndroidX.Activity.Ktx" Version="1.12.2.1" />
 <PackageReference Include="Xamarin.AndroidX.Camera.Camera2" Version="1.5.2.1" />
 <PackageReference Include="Xamarin.AndroidX.Camera.Core" Version="1.5.2.1" />
 <PackageReference Include="Xamarin.AndroidX.Camera.View" Version="1.5.2.1" />
 <PackageReference Include="Xamarin.AndroidX.Collection.Ktx" Version="1.5.0.4" />
 <PackageReference Include="Xamarin.AndroidX.Fragment.Ktx" Version="1.8.9.1" />
    <PackageReference Include="Xamarin.GooglePlayServices.MLKit.Text.Recognition" Version="119.0.1.6" />

>Build FAILED.
4>                   (_CompileToDalvik target) -> 
4>                     MSBUILD : java.exe error JAVA0000: Info in obj\Debug\net10.0-android\lp\336\jl\libs\623E6E29E2058512.jar:META-INF/com.android.tools/r8/kotlinx-serialization-common.pro at line 5, column 12:
4>                   MSBUILD : java.exe error JAVA0000: The type "<1>$*" is used in a field rule. The characters in this type are legal for the JVM, but unlikely to originate from a source language. Maybe this is not the rule you are looking for.
4>                   MSBUILD : java.exe error JAVA0000: Error in C:\n\xamarin.androidx.compose.runtime.annotation.android\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\aar\runtime-annotation-android.aar:classes.jar:androidx/compose/runtime/StableMarker.class:
4>                   MSBUILD : java.exe error JAVA0000: Type androidx.compose.runtime.StableMarker is defined multiple times: C:\n\xamarin.androidx.compose.runtime.annotation.android\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\aar\runtime-annotation-android.aar:classes.jar:androidx/compose/runtime/StableMarker.class, C:\n\xamarin.androidx.compose.runtime.annotation.jvm\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\jar\runtime-annotation-jvm.jar:androidx/compose/runtime/StableMarker.class
4>                   MSBUILD : java.exe error JAVA0000: Compilation failed
4>                   MSBUILD : java.exe error JAVA0000: java.lang.RuntimeException: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\n\xamarin.androidx.compose.runtime.annotation.android\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\aar\runtime-annotation-android.aar:classes.jar
4>                   MSBUILD : java.exe error JAVA0000: androidx/compose/runtime/StableMarker.class
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.xv.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:131)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.R8.main(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:5)
4>                   MSBUILD : java.exe error JAVA0000: Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\n\xamarin.androidx.compose.runtime.annotation.android\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\aar\runtime-annotation-android.aar:classes.jar:androidx/compose/runtime/StableMarker.class
4>                   MSBUILD : java.exe error JAVA0000: 	at Version.fakeStackEntry(Version_8.11.18.java:0)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.P.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:1)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.xv.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:82)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.xv.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:32)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.xv.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:31)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.R8.b(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:62)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.R8.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:1658)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.xv.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:118)
4>                   MSBUILD : java.exe error JAVA0000: 	... 1 more
4>                   MSBUILD : java.exe error JAVA0000: Caused by: com.android.tools.r8.internal.g: Type androidx.compose.runtime.StableMarker is defined multiple times: C:\n\xamarin.androidx.compose.runtime.annotation.android\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\aar\runtime-annotation-android.aar:classes.jar:androidx/compose/runtime/StableMarker.class, C:\n\xamarin.androidx.compose.runtime.annotation.jvm\1.10.0.1\buildTransitive\net10.0-android36.0\..\..\jar\runtime-annotation-jvm.jar:androidx/compose/runtime/StableMarker.class
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.yg0.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:21)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.O80.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:54)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.O80.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:10)
4>                   MSBUILD : java.exe error JAVA0000: 	at java.base/java.util.concurrent.ConcurrentHashMap.merge(ConcurrentHashMap.java:2056)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.O80.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:6)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.graph.z4$a.c(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:6)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.dex.c.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:56)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.dex.c.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:12)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.R8.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:33)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.R8.c(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:8)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.R8.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:1657)
4>                   MSBUILD : java.exe error JAVA0000: 	at com.android.tools.r8.internal.xv.a(R8_8.11.18_94248c9a6fd57686ded562f231d18f14e8923ad1fe977e99b974a9bf901c8a48:28)
4>                   MSBUILD : java.exe error JAVA0000: 	... 4 more
4>                   MSBUILD : java.exe error JAVA0000: Directory 'obj\Debug\net10.0-android\lp\336' is from 'Xamarin.KotlinX.Serialization.Core.Jvm.aar'.
4>
4>    4 Warning(s)
4>    1 Error(s)