How to check cell numbers

It is a recurrent problem. When I try to submit I receive errors referencing the cell number. How can I find the cell number which has the error?

Hi @manarshhjot!
Can you show us the error that you have got?
The error will usually show the UNQ CELL IDENTIFIER which has the error, so you can navigate to it.

Here is an example.

Cell #24. Can’t compile the student’s code. Error: TypeError("‘NoneType’ object is not subscriptable",)

There are many programming exercises in which I get such an error while submitting.

Check you code once again. See whether all the UNQ CELL has the correct test outputs.

This error means you are trying to use an object which has a NONE value. Mostly while indexing an object in list or dict. Also check if you have assigned any function that returns a NONE value to a variable and used that variable somewhere else.

thank you for the answer

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