Hi @awrob_ 

What version of FME Form are you using when you run into this error? Additionally, when does the error occur? Is it when you are adding a new Databricks Reader to the workspace? ​​​​​​

Hi, thanks for your reply. Version is 2023.1 and yes it is when I add the reader. I add the connection details but as soon as I try to connect or ‘test connection’ it comes up with the error 

Thanks for sharing that additional information. If you go into your C:\Program Files\<FME Install Folder>\jre\lib can you see a folder called “ext”?

If so, can you delete or rename the folder and see if the error message still appears after restarting FME? The error message indicates that the ext file may exist in your FME install and is no longer supported.

Let me know how that goes.

This worked, thank you so much! I spent far too long trying to figure it out and was on the verge of giving up. This has opened up a whole new world in terms of data integration for our team. Thanks again :)