Installing the 8.0.0.1 NuGet package to a new empty MAUI .NET8 project does not compile

[MiklosPathy]

Describe the bug If I install the nuget package to an empty MAUI .NET8 project, the project does not compile.

To Reproduce Steps to reproduce the behavior:

1. Create a new MAUI .Net8 project in Visual Studio 2022
2. Install the Barcodescanner.Mobile.Maui package
3. Compile.

Expected behavior The project compiles.

Screenshots Unnecessary.

Smartphone (please complete the following information): Nowhere there yet.

Additional context The compilation error:

Severity Code Description Project File Line Suppression State Error JAVA0000 Error in C:\Users\mpathy.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArraySetKt.class: Type androidx.collection.ArraySetKt is defined multiple times: C:\Users\mpathy.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArraySetKt.class, C:\Users\mpathy.nuget\packages\xamarin.androidx.collection.ktx\1.2.0.9\buildTransitive\net6.0-android31.0....\jar\androidx.collection.collection-ktx.jar:androidx/collection/ArraySetKt.class Compilation failed java.lang.RuntimeException: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\mpathy.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar androidx/collection/ArraySetKt.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\mpathy.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArraySetKt.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.ArraySetKt is defined multiple times: C:\Users\mpathy.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArraySetKt.class, C:\Users\mpathy.nuget\packages\xamarin.androidx.collection.ktx\1.2.0.9\buildTransitive\net6.0-android31.0....\jar\androidx.collection.collection-ktx.jar:androidx/collection/ArraySetKt.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 Barcodescanner.Mobile.Maui.Teszt 1

[Jake-Derrick]

Looks to be a duplicate of https://github.com/JimmyPun610/BarcodeScanner.Mobile/issues/218 There is a fix listed there too

[MiklosPathy]

Looks to be a duplicate of #218 There is a fix listed there too

I tried. It causes 245 errors.

[gergelyurbancsik]

this does not work at all. Anyone have a SLN that has successfully installed this nugget ? .NET MAUI

[JimmyPun610]

Try to add below package to your MAUI.

	<ItemGroup Condition="( '$(TargetFramework)' == 'net8.0-android' )">
		<PackageReference Include="Xamarin.AndroidX.Collection" Version="1.3.0.2" />
		<PackageReference Include="Xamarin.AndroidX.Collection.Ktx" Version="1.3.0.2" />
		<PackageReference Include="Xamarin.AndroidX.Collection.Jvm" Version="1.3.0.2" />
	</ItemGroup>

Please reopen it if you still encounter the same problem...

[RidhamDesai09]

Try to add below package to your MAUI.

	<ItemGroup Condition="( '$(TargetFramework)' == 'net8.0-android' )">
		<PackageReference Include="Xamarin.AndroidX.Collection" Version="1.3.0.2" />
		<PackageReference Include="Xamarin.AndroidX.Collection.Ktx" Version="1.3.0.2" />
		<PackageReference Include="Xamarin.AndroidX.Collection.Jvm" Version="1.3.0.2" />
	</ItemGroup>

Please reopen it if you still encounter the same problem...

Not able to compile the application after adding suggested code. Is there any alternative?

[Timonysos]

Try to add below package to your MAUI.

	<ItemGroup Condition="( '$(TargetFramework)' == 'net8.0-android' )">
		<PackageReference Include="Xamarin.AndroidX.Collection" Version="1.3.0.2" />
		<PackageReference Include="Xamarin.AndroidX.Collection.Ktx" Version="1.3.0.2" />
		<PackageReference Include="Xamarin.AndroidX.Collection.Jvm" Version="1.3.0.2" />
	</ItemGroup>

Please reopen it if you still encounter the same problem...

Not able to compile the application after adding suggested code. Is there any alternative?

I also still got the same problem. Anyone got a solution for this?