Xamarin started throwing that exception from no apparent reason from one debug session to another.
Basically, I was testing a functionality and some layout changes, stopped the debug and, right after the debug stopped I remembered that had something that I had to check the value, so I started another debug session ( less than 5 seconds passed between the moment I stopped one session to start the next one ).
Once I hit the F5 button, VS started building the app and then throw an error saying that some resource string was invalid - I didn't even had something like that before. Cleaned the project, build it again and then this error appeared. It's been like this for at least 30 mins ( already tried to clean the project again, restarted the VS, but so far, nothing).
Already did some research here in the forums ( found an error similar but was about an invalid name for a style which I don't seem to have any ), but so far, nothing.
Any idea on what's happening here?
C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(974,2): monodroid error XA0000: Unexpected error - Please file a bug report at http://bugzilla.xamarin.com. Reason: System.IO.FileNotFoundException: Could not load assembly '?????, Version=, Culture=neutral, PublicKeyToken='. Perhaps it doesn't exist in the Mono for Android profile?
Contents on Xamarin.Android.Common.targets @ 974 From Windows, last modified on 23/03/2016 01:19 if that matters
<ResolveLibraryProjectImports CacheFile="$(_AndroidLibraryProjectImportsCache)" Assemblies="@(ReferencePath);@(ReferenceDependencyPaths)" ImportsDirectory="$(_LibraryProjectImportsDirectoryName)" UseShortFileNames="$(UseShortFileNames)" OutputDirectory="$(IntermediateOutputPath)" OutputImportDirectory="$(IntermediateOutputPath)__library_projects__\">
On a side note: Can the devs PLEASE fix the documentation on VS? Having to see "To be added." all day is becoming annoying...