Checking your code (if applicable) and your blueprints for lingering references will clean up most of this.
You need to make sure that your project is not referencing these files. I would suggest cleaning out the Saved and Intermediate file while also right-clicking within the Content Browser and fixing up redirectors.
I’d need to see your log to really know how to even begin to help you further. You might have some errors in the actual code or set up of the blueprint that you need to correct as well.
Good luck.