MAUI .NET 8 on Android - throwing an exception

Question

MAUI .NET 8 on Android - throwing an exception

KarPreet 80

MSBUILD : java.exe error JAVA0000: Error in C:\Users\jeeva.nuget\packages\xamarin.androidx.collection.jvm\1.4.3.1\buildTransitive\net8.0-android34.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class:

1>MSBUILD : java.exe error JAVA0000: Type androidx.collection.ArrayMapKt is defined multiple times: C:\Users\jeeva.nuget\packages\xamarin.androidx.collection.jvm\1.4.3.1\buildTransitive\net8.0-android34.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class, C:\Users\jeeva.nuget\packages\xamarin.androidx.collection.ktx\1.2.0.9\buildTransitive\net6.0-android31.0....\jar\androidx.collection.collection-ktx.jar:androidx/collection/ArrayMapKt.class

1>MSBUILD : java.exe error JAVA0000: Compilation failed

1>MSBUILD : java.exe error JAVA0000: java.lang.RuntimeException: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\jeeva.nuget\packages\xamarin.androidx.collection.jvm\1.4.3.1\buildTransitive\net8.0-android34.0....\jar\androidx.collection.collection-jvm.jar

1>MSBUILD : java.exe error JAVA0000: androidx/collection/ArrayMapKt.class

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.S0.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:135)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.D8.main(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:5)

1>MSBUILD : java.exe error JAVA0000: Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\jeeva.nuget\packages\xamarin.androidx.collection.jvm\1.4.3.1\buildTransitive\net8.0-android34.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class

1>MSBUILD : java.exe error JAVA0000: at Version.fakeStackEntry(Version_8.2.33.java:0)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.T.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:5)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.S0.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:82)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.S0.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:32)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.S0.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:31)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.S0.b(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:2)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.D8.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:42)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.D8.b(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:13)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.D8.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:40)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.S0.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:122)

1>MSBUILD : java.exe error JAVA0000: ... 1 more

1>MSBUILD : java.exe error JAVA0000: Caused by: com.android.tools.r8.utils.b: Type androidx.collection.ArrayMapKt is defined multiple times: C:\Users\jeeva.nuget\packages\xamarin.androidx.collection.jvm\1.4.3.1\buildTransitive\net8.0-android34.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class, C:\Users\jeeva.nuget\packages\xamarin.androidx.collection.ktx\1.2.0.9\buildTransitive\net6.0-android31.0....\jar\androidx.collection.collection-ktx.jar:androidx/collection/ArrayMapKt.class

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.Q2.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:21)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.D2.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:54)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.D2.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:10)

1>MSBUILD : java.exe error JAVA0000: at java.base/java.util.concurrent.ConcurrentHashMap.merge(ConcurrentHashMap.java:2056)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.D2.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:6)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.graph.m4$a.d(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:6)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.dex.c.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:61)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.dex.c.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:12)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.dex.c.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:9)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.D8.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:45)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.D8.d(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:17)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.D8.c(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:69)

1>MSBUILD : java.exe error JAVA0000: at com.android.tools.r8.utils.S0.a(R8_8.2.33_429c93fd24a535127db6f4e2628eb18f2f978e02f99f55740728d6b22bef16dd:28)

1>MSBUILD : java.exe error JAVA0000: ... 6 more

1>MSBUILD : java.exe error JAVA0000:

I have an in-app subscription in my project, and I used Xamarin.Android.Google.BillingClient package in migrated MAUI project.
<ItemGroup Condition="'$(TargetFramework)' == 'net8.0-android'">

      	 <PackageReference Include="Xamarin.Android.Google.BillingClient">

			<Version>7.1.1</Version>

</PackageReference>
```</ItemGroup>**  
**Does this package cause this exception? is there any solution to resolve this issue?****

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2024-11-07T03:11:03.7733333+00:00
To investigate further, could you please provide the following information?

Did this problem occur after adding this NugetPackage?

What version of Android is your application running on?

There is an issue with the same error message in androidx.collection.ArrayMapKt is defined multiple times #18665, where there is a solution to add Nuget Package. Does it work for you?

It is much more complicated. Something is transitively pulling in older nugets. I did analysis and found one for now. Can you try adding explicitly this nuget, please?

` <PackageReference Include="Xamarin.AndroidX.Fragment.Ktx"> <Version>1.6.2</Version> </PackageReference> `

It worked on my sample. If that helps please report it here (I need it for analysis and record) and close this issue please.

Below is the one in the new .net 7.0, where it isn't working

Yup. I was able to repro.

`<ItemGroup Condition="'$(TargetFramework)' == 'net7.0-android'"> <PackageReference Include="Xamarin.GooglePlayServices.Auth"> <Version>120.7.0.1</Version> </PackageReference> </ItemGroup>`
KarPreet 80 Reputation points

2024-11-07T04:54:48.2266667+00:00
I previously posted about a similar issue while using Xamarin.Android.Google.BillingClient version 6.2.1. At that time, the recommended solution was to add these packages specifically for net8.0-android, and it resolved the conflict:
https://learn.microsoft.com/en-us/answers/questions/1791244/maui-net-8-on-android-throwing-an-exception

<ItemGroup Condition="'$(TargetFramework)' == 'net8.0-android'">

**<PackageReference Include="Xamarin.Android.Google.BillingClient" Version="6.2.1" />** **<PackageReference Include="Xamarin.AndroidX.Fragment.Ktx" Version="1.7.0.2" />** **<PackageReference Include="Xamarin.GooglePlayServices.Base" Version="118.4.0" />**

</ItemGroup>

I recently updated Xamarin.Android.Google.BillingClient to version 7.1.1 because, when retrieving product details from the Google Play Store, the API was returning an empty response. I thought this might be due to an issue in version 6.2.1, so I tried updating to see if it would resolve the issue.

However, with BillingClient version 7.1.1, the same dependency conflicts have reappeared. Could you advise on how to handle these conflicts in .NET 8 with this updated version, or suggest any alternative solutions for retrieving product details?"

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Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2024-11-07T03:11:03.7733333+00:00

To investigate further, could you please provide the following information?

Did this problem occur after adding this NugetPackage?

What version of Android is your application running on?

There is an issue with the same error message in androidx.collection.ArrayMapKt is defined multiple times #18665, where there is a solution to add Nuget Package. Does it work for you?

It is much more complicated. Something is transitively pulling in older nugets. I did analysis and found one for now. Can you try adding explicitly this nuget, please?

` <PackageReference Include="Xamarin.AndroidX.Fragment.Ktx"> <Version>1.6.2</Version> </PackageReference> `

It worked on my sample. If that helps please report it here (I need it for analysis and record) and close this issue please.

Below is the one in the new .net 7.0, where it isn't working

Yup. I was able to repro.

`<ItemGroup Condition="'$(TargetFramework)' == 'net7.0-android'"> <PackageReference Include="Xamarin.GooglePlayServices.Auth"> <Version>120.7.0.1</Version> </PackageReference> </ItemGroup>`
KarPreet 80 Reputation points

2024-11-07T04:54:48.2266667+00:00

I previously posted about a similar issue while using Xamarin.Android.Google.BillingClient version 6.2.1. At that time, the recommended solution was to add these packages specifically for net8.0-android, and it resolved the conflict:
https://learn.microsoft.com/en-us/answers/questions/1791244/maui-net-8-on-android-throwing-an-exception

<ItemGroup Condition="'$(TargetFramework)' == 'net8.0-android'">

**<PackageReference Include="Xamarin.Android.Google.BillingClient" Version="6.2.1" />** **<PackageReference Include="Xamarin.AndroidX.Fragment.Ktx" Version="1.7.0.2" />** **<PackageReference Include="Xamarin.GooglePlayServices.Base" Version="118.4.0" />**

</ItemGroup>

I recently updated Xamarin.Android.Google.BillingClient to version 7.1.1 because, when retrieving product details from the Google Play Store, the API was returning an empty response. I thought this might be due to an issue in version 6.2.1, so I tried updating to see if it would resolve the issue.

However, with BillingClient version 7.1.1, the same dependency conflicts have reappeared. Could you advise on how to handle these conflicts in .NET 8 with this updated version, or suggest any alternative solutions for retrieving product details?"

Answer 1

Hello,

Thanks for your feedback.

After testing, in .net maui 8.0, the following Nuget Packages combinations compile correctly without any error message.

<ItemGroup Condition="'$(TargetFramework)' == 'net8.0-android'">
<PackageReference Include="Xamarin.Android.Google.BillingClient" Version="7.1.1" />
 
	<PackageReference Include="Xamarin.AndroidX.Fragment.Ktx" Version="1.8.3.1" />
 
	<PackageReference Include="Xamarin.GooglePlayServices.Base" Version="118.5.0.2" />
</ItemGroup>

Best Regards,

Alec Liu.

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KarPreet 80 Reputation points

2024-11-07T07:25:06.0733333+00:00

Thank You. Now the Conflict Resolved

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MAUI .NET 8 on Android - throwing an exception

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