Start debugging button unavailable in a VS2012 project

Question

I'm using visual studio 2012 and I don't find the button start for debugging. Instead, there a button "Attach". How is it possible to enable Start button. I have only one project in the solution that I imported from vs2010. When a create a new project from scratch, Start is available.

Answer 1

You can solve this issue by right clicking the project in Visual Studio and setting it as the 'StartUp Project'.