Can anyone help me work out a bug? I’m building the docker image with prefecthq/prefect:1.1.0-python3.8. I’m also registering the flow with prefect 1.1.0 and doing so using the cli. The error is

Failed to load and execute flow run: FlowStorageError('An error occurred while unpickling the flow:\n  AttributeError("Can\'t get attribute \'_make_function\' on <module \'cloudpickle.cloudpickle\' from \'/usr/local/lib/python3.8/site-packages/cloudpickle/cloudpickle.py\'>")\nThis may be due to one of the following version mismatches between the flow build and execution environments:\n  - cloudpickle: (flow built with \'2.1.0\', currently running with \'2.0.0\')')

The cloudpickle version and python version of your local needs to match the version inside the base image you are using.

The prefecthq/prefect:1.1.0-python3.8 appears to be using 3.8.12. That is what I am using as well.

how about cloudpickle version?

son of a.. i know what i did wrong..

No worries! All good 🙂