Visual Studio project not building when I click debug or press F5

Question

VS2010 c#, winforms project.

It does not build automatically when I click on debug or press f5. If I manually build the project before I debug, it compiles and chan

Answer 1

Because my project was independend from other projects by using prism I had to uncheck 'Only build startup projects and dependencies on Run' in Tools->Options->Projects and Solutions->Build and Run.