When I run my flow, I see an error: Failed to load and execute Flow's environment: ModuleNotFoundError("No module named '/Users/username'"). What is happening?

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Additional solutions from this StackOverflow question answered by Chris White:

If you are using Local Storage + a Local Agent, you need to make sure the module_that_was_not_found directory is on your local importable Python PATH. There are a few ways of doing this:

  • run your Prefect Agent in the tutorial directory; your Local Agent’s path will then be inherited by the flows it submits
  • manually add the module_that_was_not_found/ directory to your global python path (I don’t recommend this)
  • add the module_that_was_not_found/ directory to your Agent’s path with the -p CLI flag; for example: prefect agent start -p ~/Developer/prefect/examples/module_that_was_not_found (this is the approach I recommend)