C5W4 A1 Transformer (Can't compile the student's code.)

[Kyusang_Song]

I renamed my file which was the issue to be graded.
Thank you!

C5 W4 A1: Can't compile student's code (old thread, please don't add new replies)

Did you rename your Notebook file? That can cause this sort of problem with submitting your work. The grader always uses the default notebook file name. You can’t really use a renamed notebook.