All the unit tests succeed (after restarting a few times), but when I submit, all the exercises fail with:
Failed test case: planner_agent raised TypeError: argument of type ‘NoneType’ is not iterable.
Expected:
no exception,
but got:
argument of type ‘NoneType’ is not iterable.
etc. Tried to repead a few times over two days, but having no usable message, I am stuck. Something similar happened in another module, but it passed (without any code changes) after retrying later.
Did you change the name of your notebook file?
The “NoneType” message usually means you have an incomplete assignment. The simplest way for this to happen is if you are using a renamed copy of the notebook.
The grader always uses the notebook with the original file name.
hello @Ondrej_Pacovsky
This error is pointing that one of the function you have used to recall, has no values, so please check if any of the variable you recalled is following the instructions correctly, it might be a very minute error.
In case you are still able to find, then click on my name and then message me the code screenshot for the exercise you are failing test.
Please make sure not to.post any codes from grade function cell on this public post thread as it is against community guidelines.
regards
Dr. Deepti
Passed now. Zero code changes..
Perhaps there was an issue with your notebook not being saved before you submitted for grading.
The auto-save feature doesn’t work very reliably. It takes time to activate.
Tip: In the future, save your work manually before you submit for grading.