[mono-android] "The referenced project is targetted to a different framework family (MonoAndroid)"

[Tom Opgenorth]

Just trying something out here.  Adding some unit tests to a project
of mine.  When I went to add the test assembly, I just added a new
project that is a regular DLL.  For the test assembly I then added
references to Xunit, Rhino.Mocks, my M4A project, and
Mono.Android.dll. Now when I build my solution, I get the warning "The
project 'net.opgenorth.m4a.mytrips' cannot be referenced.  The
referenced project is targeted to a different framework family
(MonoAndroid)" showing up.

Has anybody else seen this happening?  What have others done in this scenario?

TIA.

-- 
http://www.opgenorth.net