W2_A2_Stuck_with_Grader output zero

The programming assignment in my W2 of Neural networks, that is Logistic Regression with a Neural Network mindset has been running perfectly giving the correct answers and passing all the tests but still I have been getting 0/100 and am stuck please help. Lab ID: euyrotxdsawt

We can’t directly see your notebooks: only the course staff can do that.

Do you get any other indication from the grader if you click “Show grader output”? Please show us a screenshot of that.

One other thing to try would be:

  1. Kernel → Restart and Clear Output
  2. Save
  3. Submit

Note that the grader doesn’t need to see the output in the notebook, just your code.

1 Like

[ValidateApp | INFO] Validating ‘/home/jovyan/work/submitted/courseraLearner/W2A2/Logistic_Regression_with_a_Neural_Network_mindset.ipynb’
[ValidateApp | ERROR] Traceback (most recent call last):
File “/opt/conda/lib/python3.7/site-packages/nbgrader/preprocessors/checkcellmetadata.py”, line 11, in preprocess
MetadataValidator().validate_nb(nb)
File “/opt/conda/lib/python3.7/site-packages/nbgrader/nbgraderformat/v3.py”, line 107, in validate_nb
raise ValidationError(“Duplicate grade id: {}”.format(grade_id))
jsonschema.exceptions.ValidationError: Duplicate grade id: cell-a3b6699f145f3a3f

[ValidateApp | ERROR] Notebook failed to validate; the nbgrader metadata may be corrupted.
[ValidateApp | ERROR] Traceback (most recent call last):
File “/opt/conda/lib/python3.7/site-packages/nbgrader/apps/validateapp.py”, line 72, in start
validator.validate_and_print(filename)
File “/opt/conda/lib/python3.7/site-packages/nbgrader/validator.py”, line 340, in validate_and_print
results = self.validate(filename)
File “/opt/conda/lib/python3.7/site-packages/nbgrader/validator.py”, line 311, in validate
nb = self._preprocess(nb)
File “/opt/conda/lib/python3.7/site-packages/nbgrader/validator.py”, line 290, in _preprocess
nb, resources = pp.preprocess(nb, resources)
File “/opt/conda/lib/python3.7/site-packages/nbgrader/preprocessors/checkcellmetadata.py”, line 16, in preprocess
raise ValidationError(msg)
jsonschema.exceptions.ValidationError: Notebook failed to validate; the nbgrader metadata may be corrupted.

[ValidateApp | ERROR] nbgrader encountered a fatal error while trying to validate ‘submitted/courseraLearner/W2A2/Logistic_Regression_with_a_Neural_Network_mindset.ipynb’

I see your notebook name is not the same as expected. It has a “_trying_to_delete” term. Why?

Is there any way to redo it from scratch? Undo all changes?

Yes. Check this guide to get a clean copy of your notebook.