Unit test project cannot find assembly under test (or dependencies)

Question

When I try to run my Unit Test project, I get the following error:

Could not load file or assembly \'ASSEMBLY_NAME, Version=1.0.0.0, Culture=neutral, Pub

Answer 1

Check Build->Configuration Manager... menu. All projects should have the same platform and column Build checked.

Also you can take a look into output of the build (Output window), it usually states more clearly which file could not be found.