Notebook Error: SparkCoreError/PersonalizingFailed: Livy session has failed

Hi mdhewitt83 

I searched internally and on the forums, but I haven’t found any other users reporting this error recently. I tested starting a session on a custom environment with the public library (great-expectations) installed without having any error. Sometimes, it might be a temporary problem. You could try again to see if it still occurs. 

Additionally, the error you got is more similar to the one in the following thread. If current environment still doesn't work, you can try creating and using a new environment to run the notebook, or try pip install the great-expectations module in notebook directly. 

Power BI Lakehouse notebook cannot start session - Microsoft Q&A

Best Regards,
Jing
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