DLS Course4 W3A2 (U-Net) assignment grading problem

I have tried many ways(Including according to the reading material, press Kernel → Restart & Clear Output and then press File → Save and Checkpoint) to submit the homework, but the score is always 0, how should I solve it?

Have you changed any pre-written code? Check the below guide:

Important Note on Submission to the AutoGrader

Before submitting your assignment to the AutoGrader, please make sure you are not doing the following:

  1. You have not added any extra print statement(s) in the assignment.

  2. You have not added any extra code cell(s) in the assignment.

  3. You have not changed any of the function parameters.

  4. You are not using any global variables inside your graded exercises. Unless specifically instructed to do so, please refrain from it and use the local variables instead.

  5. You are not changing the assignment code where it is not required, like creating extra variables.

If you do any of the following, you will get something like, Grader not found (or similarly unexpected) error upon submitting your assignment. Before asking for help/debugging the errors in your assignment, check for these first. If this is the case, and you don’t remember the changes you have made, you can get a fresh copy of the assignment by following these instructions.

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The error “list index out of range” sounds like an error in your code.

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Thanks, I’ll check again!

Hi @3231631963,

It clearly states in the notebook why you’d get the “list index out of range” error