I'm building a MAUI app in .NET8 which will scan barcodes. I'm trying to integrate the GoogleVision library - BarcodeScanner.Mobile.Maui (8.0.0.1) and I'm getting an error which I have no idea how to solve. Any hints appreciated.
I see there already is a similar question on SO but no confirmed answer and I've tried the answers from there and they didn't work so I'm posting my question too.
Severity Code Description Project File Line Suppression State Details Error JAVA0000 Error in C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class: Type androidx.collection.ArrayMapKt is defined multiple times: C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class, C:\Users\UserX.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 Compilation failed java.lang.RuntimeException: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar androidx/collection/ArrayMapKt.class at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:126) at com.android.tools.r8.D8.main(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:5) Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class at Version.fakeStackEntry(Version_8.1.56.java:0) at com.android.tools.r8.M.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:5) at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:81) at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:32) at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:31) at com.android.tools.r8.utils.R0.b(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:2) at com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:26) at com.android.tools.r8.D8.b(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:13) at com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:24) at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:113) ... 1 more Caused by: com.android.tools.r8.utils.b: Type androidx.collection.ArrayMapKt is defined multiple times: C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class, C:\Users\UserX.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 at com.android.tools.r8.utils.O2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:21) at com.android.tools.r8.utils.O2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:26) at com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:44) at com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:10) at java.base/java.util.concurrent.ConcurrentHashMap.merge(ConcurrentHashMap.java:2056) at com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:6) at com.android.tools.r8.graph.b4$a.e(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:7) at com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:58) at com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:9) at com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:8) at com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:29) at com.android.tools.r8.D8.d(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:17) at com.android.tools.r8.D8.c(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:1) at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:28) ... 6 more GoogleVision 1
What worked for me eventually was manually adding these two packages as direct project dependencies:
Xamarin.AndroidX.CoreXamarin.AndroidX.Fragment.KtxThough I had problems forcing VS to install the second package and had to add a project reference in the .csproj file to force it to install it:
<ItemGroup Condition="'$(TargetFramework)' == 'net8.0-android'">
<PackageReference Include="Xamarin.AndroidX.Fragment.Ktx">
<Version>1.6.2.1</Version>
</PackageReference>
</ItemGroup>