Is there any way to solve XCode freeze-ups while debugging, and it can not populate the variable watch window?

I often get freeze ups where XCode 4.6.1 shows me this nearly endless progress spinner and freezes for up 3 minutes before returning:

enter image description here

This only happens with real iPhone targets so I suspect the problem is in communication to the remote-debugger-kernel that is on the real iOS device target.

Has anyone seen this and knows of a workaround or fix? (Other than the obvious, turn off the debugger watch window.)

Solution

This appears to be fixed in XCode 4.6.2. (April 15th)

If this doesn't fix your problem, or you encounter it in XCode 6, try cleaning up your binary build products (Derived Data) folders.