Error XA4212 when trying to build the project

[malthuis]

When I try to build my Xamarin.Android project, I get the following error:

error XA4212: Type Com.Mapbox.Services.Android.Location.LostLocationEngine implements Android.Runtime.IJavaObject but does not inherit Java.Lang.Object or Java.Lang.Throwable. This is not supported.

I was successful mitigating this error by putting the following in my project file:
<PropertyGroup> <AndroidErrorOnCustomJavaObject>false</AndroidErrorOnCustomJavaObject> </PropertyGroup>

But if I do that, the app just crashes with: "'java.exe' exited with code 1".

[malthuis]

Details from the build log:

Error in obj\Debug\90\lp\1\jl\gson.jar:com/google/gson/annotations/JsonAdapter.class:
Type com.google.gson.annotations.JsonAdapter is defined multiple times: obj\Debug\90\lp\1\jl\gson.jar:com/google/gson/annotations/JsonAdapter.class, obj\Debug\90\lp\2\jl\gson-2.8.0.jar:com/google/gson/annotations/JsonAdapter.class

[SagarPanwala]

@malthuis Have you figured this out ? I'm facing same problem.