Python in dynamo does not found Revit DB

Hi all. I’m trying to automate a floor fall (slope) using Python in Dynamo. However, every time I run the script, I get an error message. Could anyone please help me understand how to fix the Revit DB issue?

Thank you in advance

Hello @fikreyb and welcome

can you post your code here?

if you haven’t done so already, take time to read the forum rules (How to get help on the Dynamo forums ) and the community guidelines (https://forum.dynamobim.com/faq )

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