Current .NET 9 is not properly compatible with Android binding libraries

[Kebechet]

Description

Many android binding libraries require at least: Xamarin.AndroidX.Lifecycle.LiveData version 2.8.7.1
but MAUI 9.0.22 requires older version >=2.8.5.1 && < 2.8.6 and because of this our Android binding fails to build.

The reason why .NET 8.0.100 works with this is because it's dependencies dont contain upper version limit. It requires just Xamarin.AndroidX.Lifecycle.LiveData version >2.6.1.3

Version conflict detected for Xamarin.AndroidX.Lifecycle.LiveData.Core. Install/reference Xamarin.AndroidX.Lifecycle.LiveData.Core 2.8.7.1 directly to project DemoApp to resolve this issue. 
 DemoApp -> Kebechet.Maui.RevenueCat.InAppBilling -> Kebechet.Maui.RevenueCat.Android 7.12.0.4 -> Xamarin.AndroidX.Fragment.Ktx 1.8.5.1 -> Xamarin.AndroidX.Fragment 1.8.5.1 -> Xamarin.AndroidX.Lifecycle.LiveData.Core (>= 2.8.7.1) 
 DemoApp -> Microsoft.Maui.Controls 9.0.22 -> Microsoft.Maui.Controls.Core 9.0.22 -> Microsoft.Maui.Core 9.0.22 -> Xamarin.AndroidX.Lifecycle.LiveData 2.8.5.1 -> Xamarin.AndroidX.Lifecycle.LiveData.Core (>= 2.8.5.1 && < 2.8.6).

Potentially connected to:
marcojak/MauiMTAdmob#113

Steps to Reproduce

1. Download branch _net9-compatability https://github.com/Kebechet/Maui.RevenueCat.InAppBilling/tree/_net9-compatability
2. Try to build demo/DemoApp/DemoApp.sln
3. You will get the error I mentioned above because of dependency incompatabilities

Link to public reproduction project repository

https://github.com/Kebechet/Maui.RevenueCat.InAppBilling/tree/_net9-compatability

Version with bug

9.0.22 SR2.2

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

8.0.100 SR10

Affected platforms

Android

Affected platform versions

No response

Did you find any workaround?

nope

Relevant log output

Version conflict detected for Xamarin.AndroidX.Lifecycle.LiveData.Core. Install/reference Xamarin.AndroidX.Lifecycle.LiveData.Core 2.8.7.1 directly to project DemoApp to resolve this issue. 
 DemoApp -> Kebechet.Maui.RevenueCat.InAppBilling -> Kebechet.Maui.RevenueCat.Android 7.12.0.4 -> Xamarin.AndroidX.Fragment.Ktx 1.8.5.1 -> Xamarin.AndroidX.Fragment 1.8.5.1 -> Xamarin.AndroidX.Lifecycle.LiveData.Core (>= 2.8.7.1) 
 DemoApp -> Microsoft.Maui.Controls 9.0.22 -> Microsoft.Maui.Controls.Core 9.0.22 -> Microsoft.Maui.Core 9.0.22 -> Xamarin.AndroidX.Lifecycle.LiveData 2.8.5.1 -> Xamarin.AndroidX.Lifecycle.LiveData.Core (>= 2.8.5.1 && < 2.8.6).

[Marnie-Majait]

This issue has been verified Visual Studio 17.13 Preview 2.1 (9.0.22 & 9.0.21 & 9.0.0). Can repro this issue on android platform. 8.0.100 works fine.

[moljac]

.NET 9 is properly compatible with Android libraries, but .NET 9 is stricter with dependencies (transitive)

If you add:

    <PackageReference Include="Xamarin.AndroidX.Lifecycle.LiveData.Core" Version="2.8.7.1" />
    <PackageReference Include="Xamarin.AndroidX.Lifecycle.LiveData.Core.Ktx" Version="2.8.7.1" />

You will get new set of errors

1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.BinaryFormat` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.BinaryFormat` generated by: Kotlinx.Serialization.IBinaryFormat, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.BinaryFormat` generated by: KotlinX.Serialization.IBinaryFormat, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.Contextual` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Contextual` generated by: Kotlinx.Serialization.IContextual, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Contextual` generated by: KotlinX.Serialization.IContextual, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.DeserializationStrategy` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.DeserializationStrategy` generated by: Kotlinx.Serialization.IDeserializationStrategy, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.DeserializationStrategy` generated by: KotlinX.Serialization.IDeserializationStrategy, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.ExperimentalSerializationApi` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.ExperimentalSerializationApi` generated by: Kotlinx.Serialization.IExperimentalSerializationApi, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.ExperimentalSerializationApi` generated by: KotlinX.Serialization.IExperimentalSerializationApi, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.InternalSerializationApi` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.InternalSerializationApi` generated by: Kotlinx.Serialization.IInternalSerializationApi, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.InternalSerializationApi` generated by: KotlinX.Serialization.IInternalSerializationApi, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.KSerializer` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.KSerializer` generated by: Kotlinx.Serialization.IKSerializer, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.KSerializer` generated by: KotlinX.Serialization.IKSerializer, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.Polymorphic` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Polymorphic` generated by: Kotlinx.Serialization.IPolymorphic, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Polymorphic` generated by: KotlinX.Serialization.IPolymorphic, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.Required` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Required` generated by: Kotlinx.Serialization.IRequired, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Required` generated by: KotlinX.Serialization.IRequired, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.SerialFormat` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerialFormat` generated by: Kotlinx.Serialization.ISerialFormat, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerialFormat` generated by: KotlinX.Serialization.ISerialFormat, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.SerialInfo` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerialInfo` generated by: Kotlinx.Serialization.ISerialInfo, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerialInfo` generated by: KotlinX.Serialization.ISerialInfo, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.Serializable` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Serializable` generated by: Kotlinx.Serialization.ISerializable, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Serializable` generated by: KotlinX.Serialization.ISerializable, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.SerializationStrategy` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerializationStrategy` generated by: Kotlinx.Serialization.ISerializationStrategy, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerializationStrategy` generated by: KotlinX.Serialization.ISerializationStrategy, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.Serializer` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Serializer` generated by: Kotlinx.Serialization.ISerializer, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Serializer` generated by: KotlinX.Serialization.ISerializer, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.SerialName` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerialName` generated by: Kotlinx.Serialization.ISerialName, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.SerialName` generated by: KotlinX.Serialization.ISerialName, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.StringFormat` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.StringFormat` generated by: Kotlinx.Serialization.IStringFormat, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.StringFormat` generated by: KotlinX.Serialization.IStringFormat, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.Transient` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Transient` generated by: Kotlinx.Serialization.ITransient, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.Transient` generated by: KotlinX.Serialization.ITransient, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.UseContextualSerialization` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.UseContextualSerialization` generated by: Kotlinx.Serialization.IUseContextualSerialization, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.UseContextualSerialization` generated by: KotlinX.Serialization.IUseContextualSerialization, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.UseSerializers` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.UseSerializers` generated by: Kotlinx.Serialization.IUseSerializers, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.UseSerializers` generated by: KotlinX.Serialization.IUseSerializers, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.modules.SerializersModuleCollector` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.modules.SerializersModuleCollector` generated by: Kotlinx.Serialization.Modules.ISerializersModuleCollector, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.modules.SerializersModuleCollector` generated by: KotlinX.Serialization.Modules.ISerializersModuleCollector, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.encoding.CompositeDecoder` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.CompositeDecoder` generated by: Kotlinx.Serialization.Encoding.ICompositeDecoder, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.CompositeDecoder` generated by: KotlinX.Serialization.Encoding.ICompositeDecoder, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.encoding.CompositeEncoder` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.CompositeEncoder` generated by: Kotlinx.Serialization.Encoding.ICompositeEncoder, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.CompositeEncoder` generated by: KotlinX.Serialization.Encoding.ICompositeEncoder, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.encoding.Decoder` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.Decoder` generated by: Kotlinx.Serialization.Encoding.IDecoder, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.Decoder` generated by: KotlinX.Serialization.Encoding.IDecoder, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.encoding.Encoder` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.Encoder` generated by: Kotlinx.Serialization.Encoding.IEncoder, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.encoding.Encoder` generated by: KotlinX.Serialization.Encoding.IEncoder, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 : The Java type `kotlinx.serialization.descriptors.SerialDescriptor` is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.descriptors.SerialDescriptor` generated by: Kotlinx.Serialization.Descriptors.ISerialDescriptor, Binding.Intercom.Kotlinx.Serialization.Core.Jvm, Version=1.2.2.0, Culture=neutral, PublicKeyToken=null
1>Xamarin.Android.Common.targets(1488,3): Error XA4215 :   `kotlinx.serialization.descriptors.SerialDescriptor` generated by: KotlinX.Serialization.Descriptors.ISerialDescriptor, Xamarin.KotlinX.Serialization.Core.Jvm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
1>------- Finished building project: DemoApp. Succeeded: False. Errors: 73. Warnings: 22

Those errors are known and described in

dotnet/android-libraries#764

Something is using (as transitive dependency) Binding.Intercom.Kotlinx.Serialization.* which is not officially supported bindings.

[jpobst]

Tracked here: dotnet/android-libraries#764.