C1_W2 LAB Submit error

Course Q&A Math for Machine Learning Linear Algebra for Machine Learning and Data Sc...
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Likewise, I also couldn’t see the grade even though the work had been done correctly. Is there a solution for that?

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If there are issues in your code that make the grader crash, you get zero points.
Please post a screen capture image that shows the grader feedback details.

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all test passed, but grade nothing. and the submission date seems to be an error. Because I submitted it at 10 o’clock but it was listed at 9 o’clock

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Click on the > next to the “Exercise 1: Load the dataset” item. That will drop down a text message that says what issue the grader found.

That’s what I need to see.

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There was a problem compiling the code from your notebook. Details:
No module named ‘w2_unittest’

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this lab files

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This error typically means that something is wrong with your notebook ipynb file, and it made the grader unhappy.

These are the most common reasons:

  • You’re using an obsolete version of the notebook, which isn’t compatible with the grader.
  • or you submitted the notebook before you completed all of the parts of the assignment.
  • or you tried to use the “grade up to here” tag, but incorrectly.
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What can I do to fix it?

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Update your assignment to the current version.

The FAQ thread (click on the link below) gives a detailed procedure:

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I submitted the code and the result was the same as requested but the system did not receive points

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Click on the > next to any of the grader messages, and you’ll see the feedback that tells you what made the grader unhappy.

Post back a screen capture image for the first one in the list.

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HI ,

I might have deleted one of the cells. I later encountered a similar error where the auto-grading gave a 0 even though all the questions were correctly answered.
Could you assist me with what I need to do get around this error ?

Could you provide me with a fresh file. I can redo the assignment from the start.
Or an alternative solution is also appreciated.

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Ok… this was solved.

I followed the instructions provided in the link in the Reading section - (Optional) Assignment Troubleshooting Tips to refresh the workspace and get a fresh notebook.
Re-did the assignments on it. Completed fine.

Refreshing your Workspace

This will come in handy whenever you need to start from scratch, fetch the latest version of the assignment, or run into a 404 error.

  1. Open the notebook from the classroom.
  2. After the notebook opens up, click File → Open
  3. When your workspace opens, tick the check box before your notebook file. After it is selected, press Shutdown. The icon beside the filename should turn from green to gray.
  4. Tick the checkbox again and this time choose Rename and enter any filename other than the original. For example, C4W1_Assignment.ipynb (original) → C4W1_Assignment_v2.ipynb
  5. (Optional) Tick the checkbox of any other file that you want to get a fresh copy of (e.g. dataset files that you might have manipulated irreversibly). Then click Delete . You can also opt to Rename or Download each file individually in case you want to keep them before deleting.
  6. Click on the Help button on the top right of the page.
  7. Click the Get latest version button.
  8. Click the Update Lab button. The page will refresh and you should now see the latest version of the notebook.