https://prefect.io logo
Title
n

Niko Usai

05/07/2021, 8:37 AM
Hi everyone I've got a prefect agent running on a Kubernetes cluster for a year or so and everything was fine, then it started to give me this error few days ago, without any change in anything:
[2021-05-07 08:16:03,101] ERROR - agent | Error while deploying flow: ValidationError({'_schema': 'Invalid data type: None'},)
I've tried to search, but couldn't find any hint on what to look, anyone could help?
k

Kevin Kho

05/07/2021, 1:46 PM
Hi @Niko Usai! What is the version of your server/agent/flow?
n

Niko Usai

05/07/2021, 3:38 PM
hi server is the cloud one agent is
prefecthq/prefect:0.13.9-python3.6
prefect lib of the flow
prefect==0.14.17
I have to update something
k

Kevin Kho

05/07/2021, 3:39 PM
I’m not 100% this will solve the issue but in general server/agent versions should be at least as high as the flow
And the mismatch causes a bunch of errors
n

Niko Usai

05/07/2021, 3:42 PM
ok I'll try that, I should have thought about it 😄