Practice lab is failing to evaluate my grade

Course Q&A Machine Learning Specialization Unsupervised Learning, Recommenders, Reinforcement
1

Hello I’m trying to finish the week 3 of the Unsupervised Learning, Recommenders, Reinforcement Learning course, but the practice lab for Reinforcement learning is giving me a grade equal to zero everytime I submit. It’s giving the error: Can’t compile the student’s code. Error: FileNotFoundError(“The directory ‘/home/www/app/videos’ does not exist”).
Can somebody help me please?

2

Did you download the notebook to work on it locally, and then upload it back to Coursera for grading?

3

No, I worked inside the Coursera platform by editing the current notebook.

4

What is the title of the notebook (its file name)?

5

C3_W3_A1_Assignment.ipynb

6

Hello, I think I advanced with the solution. I tried to add the folder videos by code with the help of a colleague:

import os
os.makedirs("./videos", exist_ok=True) #folder didn't exist trying to fix it

This cleaned the previous error, but gave this new one:
Can't compile the student's code. Error: error('No available video device')

I don’t know if this helps solving the issue, can you please check?

7

You should not have to make any changes like that.

The only possible cause I can think of is if the metadata in your notebook has been modified to reference a local video folder, rather than the one that is in the notebook.

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