Troubleshooting Debugger

Troubleshooting Debugger

1. Debugger not working

Unfortunately there could be a number of reasons the debugger isn't working.
For instance it is possible VS Code is displaying some errors that could provide a hint. Look at the debugger console for any error messages displayed. Look at the Debugger Tools console output for any errors.

Cause: The path to the python executable is incorrect
Solution: Configure the path to the python executable in the settings.json
Remember to re-start VS Code once done (this won't be necessary in a future release).

Cause: Invalid expressions in watch window
The following error is displayed:

Traceback (most recent call last):
  File ".../visualstudio_py_debugger.py", line 1646, in loop
    cmd()
  File ".../visualstudio_py_debugger.py", line 1918, in command_execute_code
    thread.run_on_thread(text, cur_frame, eid, frame_kind, repr_kind)
  File ".../visualstudio_py_debugger.py", line 1246, in run_on_thread
    self.schedule_work(lambda : self.run_locally(text, cur_frame, execution_id, frame_kind, repr_kind))
  File ".../visualstudio_py_debugger.py", line 1238, in schedule_work
    self.unblock()
  File ".../visualstudio_py_debugger.py", line 1234, in unblock
    self._block_lock.release()
RuntimeError: release unlocked lock

Solution: Clear all expressions from the debugger Watch window and start debugging again.