If your assembly is signed with a strong name look at this answer.
Otherwise check that the name of your test assembly really is “MyTests.dll” (it doesn’t have to match the project name, though it will by default).
If your assembly is signed with a strong name look at this answer.
Otherwise check that the name of your test assembly really is “MyTests.dll” (it doesn’t have to match the project name, though it will by default).