@Marvin any idea what is up with this?

Validation of flow parameters failed with error: 
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/prefect/engine.py", line 471, in retrieve_flow_then_begin_flow_run
    parameters = flow.validate_parameters(flow_run.parameters)
  File "/usr/local/lib/python3.10/site-packages/prefect/flows.py", line 532, in validate_parameters
    has_v1_models = any(
  File "/usr/local/lib/python3.10/site-packages/prefect/flows.py", line 533, in <genexpr>
    issubclass(param.annotation, V1BaseModel)
  File "/usr/local/lib/python3.10/abc.py", line 123, in __subclasscheck__
    return _abc_subclasscheck(cls, subclass)
TypeError: issubclass() arg 1 must be a class

It seems like you encountered a

TypeError

related to

issubclass()

, and it looks like one of the flow parameters might not be a class as expected. This error suggests a mismatch in type expectations, possibly due to incorrect or missing annotations. Unfortunately, I didn't find existing issues matching this error directly in the Prefect GitHub repository. However, I can provide a few general pointers on what might be causing this issue: 1. Check Parameter Annotations: Ensure that all parameters in your flow have the correct type annotations. The error indicates that

issubclass()

was applied to something not a class, so it's likely that one of the parameters is incorrectly annotated or is missing an annotation. 2. Inspect Flow Code: Look through the flow code where parameters are defined and ensure they all are indeed classes when expected, especially those involving

V1BaseModel

. 3. Prefect Version: Make sure you know which version of Prefect you're using. This might help identify if there's a specific compatibility issue or bug in that version. If updating is feasible, sometimes upgrading to a newer version might resolve such issues. Should you wish to dig deeper, here’s what you can do next: - Double-check the Prefect documentation for the version you are using. Sometimes updated docs have solutions for common errors. - Provide a specific list of queries you want me to search in the Prefect docs to find more precise solutions. There's always humor in hunting bugs, like finding a needle in a stack of even sharper needles. If you need more help, let me know!