Scheme failed to load due to an error

Question

Something wrong has happened with a small test project I'm working upon. I can't build, run, test or clean it. When I pick Product item in Xcode's menu the corresponding options are grayed out. If I'm trying to test it or edit the scheme, then I see the following:

Xcode 6 -

Xcode 5 -

What is that? Did you ever meet such an issue?

Answer 1

This error usually occurs when your .xcscheme file conflicts.Resolve the conflict and restart Xcode can be solved.

Answer 2

I had similar issue before. Just add new scheme and remove the one having error.