Giving me 0 in 2nd week assignment of supervised machine learning

i have completed all the task but still the grading is 0…what is the reason?

Please post a screen capture image that shows your feedback from the grader.
You’ll need to click on the drop-down menu next to each part of the assignment to see the details.

i have uploaded it

The error message means that you have deleted the comment text from the notebook cell, which had the grader key “UNC_C1”.

If you are working on the “C1_W2_Linear_Regression” notebook, that cell should look like this:

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Thank you…it worked

helpfull bro