Have tried submitting it twice, all tests passing in notebook. any suggestions?
What is the detailed feedback from the grader? Please post screen capture images.
Note: Passing the tests in the notebook does not prove your code is perfect. The grader uses different tests.
Tip: Never rename your notebook file. The grader doesn’t like that.
There is a problem with your notebook that is making the grader crash.
Perhaps you have added, moved, or deleted a code cell.
Any suggestions on how i figure that out?
Did you delete, move, or add any cells?
Did you rename the notebook?
Essentially, did you do anything that seemed like a good idea, but wasn’t specifically mentioned in the instructions?
If not, then please check your personal messages for instructions.
Update:
The issue was resolved by getting a fresh copy of the notebook, and reapplying the code for the solutions.