Ok, more details on how to reproduce, and how to avoid.
If the debugger is:
- running,
- and the debugged app is NOT paused (not at a breakpoint or stepping)
- and you choose "build" or "compile"
=> then a dialog will pop up "Can't compile while debugging. Stop Debugger?".
If you press:
- yes,
- and then press F9 (or run), right after the compiler finishes (F9 is ignored, while the compiler runs),
=> then you will hang the debugger.
* Menu: "Run" > "Reset debugger" will fix the problem
* Using "stop" first and then build, is save
* Selecting "Build" or "compile" while the debugger is paused is also save.
The dialog, will show, and you can select "yes" and hit F9 as often and as quick as you can.
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"stop" is ctrl-F2. Using that first, also saves you from confirming the dialog