Hi I m trying Prefect Orion I tried to start Prefect Server

Question

Hi I m trying Prefect Orion I tried to start Prefect Server using the Prefect Python API but got an error Anyone have any idea what the cause might be I would be glad to know I m using Prefect 2 0b7 ```from prefect cli import orion Start Orion server asyncio run start orion server async def start orion server gt None await orion start print Succeed starting Prefect Orion Server return```

MasatoShima · Answer

```Starting Traceback most recent call last File PyCharmProjects workflows initialize py line 233 in lt module gt initialize File PyCharmProjects workflows initialize py line 69 in initialize asyncio run start orion server File pyenv versions 3 9 1 lib python3 9 asyncio runners py line 44 in run return loop run until complete main File pyenv versions 3 9 1 lib python3 9 asyncio base events py line 642 in run until complete return future result File PyCharmProjects workflows initialize py line 196 in start orion server await orion start File Library Caches pypoetry virtualenvs py3 9 lib python3 9 site packages prefect cli orion py line 120 in start await tg start File Library Caches pypoetry virtualenvs py3 9 lib python3 9 site packages anyio backends asyncio py line 807 in start return await future File Library Caches pypoetry virtualenvs py3 9 lib python3 9 site packages prefect cli utilities py line 77 in open process and stream output process = await anyio open process File Library Caches pypoetry virtualenvs py3 9 lib python3 9 site packages anyio core subprocesses py line 127 in open process return await get asynclib open process File Library Caches pypoetry virtualenvs py3 9 lib python3 9 site packages anyio backends asyncio py line 1105 in open process process = await asyncio create subprocess exec File pyenv versions 3 9 1 lib python3 9 asyncio subprocess py line 236 in create subprocess exec transport protocol = await loop subprocess exec File pyenv versions 3 9 1 lib python3 9 asyncio base events py line 1661 in subprocess exec transport = await self make subprocess transport File pyenv versions 3 9 1 lib python3 9 asyncio unix events py line 197 in make subprocess transport transp = UnixSubprocessTransport self protocol args shell File pyenv versions 3 9 1 lib python3 9 asyncio base subprocess py line 36 in init self start args=args shell=shell stdin=stdin stdout=stdout File pyenv versions 3 9 1 lib python3 9 asyncio unix events py line 789 in start self proc = subprocess Popen File pyenv versions 3 9 1 lib python3 9 subprocess py line 947 in init self execute child args executable preexec fn close fds File pyenv versions 3 9 1 lib python3 9 subprocess py line 1739 in execute child env list append k + b = + os fsencode v File pyenv versions 3 9 1 lib python3 9 os py line 810 in fsencode filename = fspath filename Does type checking of `filename` TypeError expected str bytes or os PathLike object not OptionInfo```

James Sopkin · Answer

Hi Masato the orion start method requires for some parameters to be passed in such as host port scheduler etc otherwise default values specified in settings will be used

James Sopkin · Answer

I think it s expecting one of those parameters but is only receiving an `OptionInfo` object

MasatoShima · Answer

Hi James Thank you very much for your answer I was able to resolve the error successfully Your advice helped me a lot