Hello since the last Xamarin update we get this error.
Xamarin update
error
CS0012 The type \'IJavaPeerable\' is defined in an assembly that is not r
You can directly copy the assembly Java.Interop.dll from the C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0 to the bin/Debug folder of your project to resolve the issue.
Java.Interop.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0
bin/Debug
This procedure perfectly worked for me.
Thanks,