Hello, so ive made a smiple first level and its basically just a small island with AI turtles and fish and my playerspawn. I keep getting the "Save Failed" error when i try to save it and when i click "Check level for errors" I get all of this. :
Can somebody please tell me whats wrong and how i can fix it? Thank you!

hi!
had the same problem, did you have any special characters in your level's name? (like § ? $...)
try to save it with the name "test" (without quotes)
when that is not working try to run ce3 as admin
hope that helps!

Everybody has those errors, nothing to worry about as it won't impact performance or user experience. Try the suggestion ilovegamemaking said. You could have unpacked the editor on your desktop / disc / folder where you need administrator rights?

Try using D:\SDK or something.

Thanks so much guys i got it to work by moving the Main folder to my C: drive and now i dont get any errors. Thanks again.