The community member in the post was facing an issue and tried using a migration tool, but it seemed to have caused some problems. They decided to manually rewrite the code instead. In the comments, another community member asked what the migration tool did, and the original poster explained that the tool they had used to auto-upgrade their notebooks and scripts threw some errors, but they were able to fix most of the imports by adding .core to most packages or by browsing where things had moved.
command to auto-upgrade notebooks and scripts but it just threw some errors, in the end most of my imports were fixed just adding .core to most packages or browsing where things moved