User Operation is waiting for “Building Workspace”

Question

As the title mentioned, I have developed a simple NFC app in eclipse and I am trying to run it in the mobile device to debug my code. However, when I try to run it, this mes

Answer 1

I ran into this issue and the reason was there was one project it was not build correctly. so if you ran into this issue in an existing working workspace review the recent changes or recently imported projects.