C1W2 - All tests passed, but assignment is graded 0/100

I completed the assignment and cleared all tests. But when I submit the assignment, it gives 0/100 and following:

[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’m not clear on what is causing this error. Please help.

Hey @samrat.vij , can you share your solution for this assignment with me in a direct message ? Thanks.

for my reference: noted

Hi @Mubsi this looks like Autograder issue but for another assignment. Will make separate gitissue for it.

Stephanus

1 Like

Reported as Gitissue #112

1 Like

Hi @Mubsi , I tried sending the assignment in direct message. For some reason html and ipynb formats were not allowed to be uploaded in message. I tried pasting the html in the message, but that is also giving ‘500 error’. Please suggest on how I can share the assignment. Thank you.

I have shared in .py format for now. Please let me know if that won’t work.

i have the same problem is there any solution please ?

Hi @Melek_Zouari, save your assignment first and then try submitting it. Thanks!