C1W1 grading error

Hi, Abhijit.

I have never personally gotten that message, so I’m not sure exactly what it means. But my guess is that there is something structurally damaged about your notebook. But the first step would to try submitting again in a “clean” and controlled way. Try these steps:

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

Then see what you get for grader feedback. If you get the same error as before that you’ve shown above, then the next thing to try is to get a clean copy of the notebook and start over. Here’s a topic about how to do that. That is from the DLS specialization, so I hope you’ll be able to see it. The notebooks work the same way in NLP. Once you have the clean copy, then very carefully “copy/paste” over just your completed code from the “YOUR CODE HERE” blocks to the new clean copy and try submitting again.

Please let us know whether that helps or not.