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Remote Debug Breakpoint Error (Docker)

See original GitHub issue

Environment data

VS Code version: 1.32.0-insiders
Extension version (available under the Extensions sidebar): 2019.1.0
OS and version: Windows 1803
Python: 3.7.2 64-bit (user install)
Python Packages: ptvsd 4.2.3
Docker: Docker (for Windows) version 18.09.1, build 4c52b90
Docker Compose: docker-compose version 1.23.2, build 1110ad01

Expected behaviour

Attach to debugger server with breakpoints.

Actual behaviour

Error is thrown that it cannot add breakpoint to non-existing file. It is mapping to the wrong path.

Recreating python_app ... done
Attaching to python_app
python_app | pydev debugger: warning: trying to add breakpoint to file that does not exist: /opt/app/c:/Users/mydevuser/Downloads/py_debug_example/app/start.py (will have no effect)
python_app | hello world!
python_app | Traceback (most recent call last):
python_app |   File "/usr/local/lib/python3.7/site-packages/ptvsd/wrapper.py", line 1422, in done
python_app |     fut.result()
python_app |   File "/usr/local/lib/python3.7/site-packages/ptvsd/futures.py", line 40, in result
python_app |     reraise(self._exc_info)
python_app |   File "/usr/local/lib/python3.7/site-packages/ptvsd/reraise3.py", line 8, in reraise
python_app |     raise exc_info[1].with_traceback(exc_info[2])
python_app |   File "/usr/local/lib/python3.7/site-packages/ptvsd/futures.py", line 157, in callback
python_app |     x = next(it)
python_app |   File "/usr/local/lib/python3.7/site-packages/ptvsd/wrapper.py", line 1677, in on_threads
python_app |     _, _, resp_args = yield self.pydevd_request(cmd, '')
python_app |   File "/usr/local/lib/python3.7/site-packages/ptvsd/wrapper.py", line 1451, in pydevd_request
python_app |     return self._pydevd_request(self.loop, cmd_id, args, is_json=is_json)
python_app |   File "/usr/local/lib/python3.7/site-packages/ptvsd/wrapper.py", line 514, in pydevd_request
python_app |     raise EOFError
python_app | EOFError
python_app exited with code 0

Steps to reproduce:

Clone py_debug_example and follow its instruction.

Logs

##########Linting Output - pylint##########

--------------------------------------------------------------------

Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)



[Error - 9:11:29 AM] One or more errors occurred. (failed to parse file file:///c:/Users/mydevuser/Downloads/py_debug_example/start.py)