A flow that runs successfully from command line fails when started from the the local website. It gi...

jack

12/04/2020, 7:26 PM

A flow that runs successfully from command line fails when started from the the local website. It gives this error:

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[Errno 2] No such file or directory: 'prefect'

but does not give context. Any idea which "prefect" file or directory it's looking for?

David Kuda

12/04/2020, 10:04 PM

Hey, did you check RunConfiguration? https://docs.prefect.io/api/latest/run_configs.html#localrun

David Kuda

12/04/2020, 10:05 PM

You might need to specify

working_dir=/prefect

in local run:

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flow.run_config = LocalRun(working_dir="/prefect")

David Kuda

12/04/2020, 10:09 PM

Or alternatively:

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from prefect.run_configs.local import LocalRun

run_config = LocalRun(wokring_dir="/prefect")

with Flow('name of flow', run_config=run_config) as flow:
    pass

jack

12/04/2020, 10:47 PM

Hmmmmmmm I don't have a "/prefect" directory. Do I need one?

David Kuda

12/04/2020, 10:54 PM

Oh, well, I thought that you might have named your folder where your code lives “prefect” 🙂

jack

12/04/2020, 10:55 PM

Is there a way to see a full stack trace when there's an error like this? Or some way to see more logging information?

Joseph

12/11/2020, 9:52 PM

Joseph

12/11/2020, 9:57 PM

FWIW I had this same issue and it was because the ‘prefect’ executable wasn’t in my path for the environment in which the agent ran.

jack

12/11/2020, 10:21 PM

Same here...fixed it by activating the virtualenv

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