You will need to go through your code and rename anything that doesn’t have the correct name. This is probably a pretty tedious process and I cannot give you a definitive list of what needs to change as there is probably a lot you’ve done that I don’t know about.
With that said, it might be easier to re-make the classes in the new project and copy the body of the code to the new classes, compiling as you go so you can catch any name changes.