GRADER ERROR: Analyzing Chlorophyll levels in Australian Coral Reefs

Course Q&A Data Analytics Professional Certificate Python for Data Analytics
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1

Hi,
Hi,
I’m working on the assignment “Programming Assignment: Analyzing Chlorophyll levels in Australian Coral Reefs”, which is the second-to-last task in the course. I’m having trouble with Step 4 (Simple Linear Regression): the grader is not recognizing the code I wrote in cell 4.

I get the expected outputs when I run the code, and there are no errors in the notebook itself. However, when I submit the notebook, the grader returns an error (sometimes even saying “Grader feedback not found”). I’ve tried restarting the kernel and running all cells again, but the problem persists.

Has anyone else experienced this or found a solution?

Thanks in advance for your help!

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Generally this error means that you’ve modified your notebook in some unexpected way, and erased some of the information that the grader requires.

For example, this can be caused by adding, deleting, moving, or otherwise editing some areas of the code cells.

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Ok. But I already restart de task and also the kernel.

How do I fix it?

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Restarting the kernel is not going to fix that.

I recommend you rename your current notebook, and then use the “Lab Help → Get latest version” tool to get a fresh copy and start over.

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5

I done it and it worked!
Thank you very much

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