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 had exactly the same problem. For me helped adding '-clean' option at the first line of eclipse.ini file and restarting IDE. After adding this option eclipse clean all cached data in workspace each time it is started (that also mean it will be starting slower).

You can find more information about it here: How to repair hanging 'User Operation is waiting for “Building Workspace”' in eclipse