C4W1 - Programming Assignment Grading

I’ve submitted my programming assignment several times, but each time, I received a score of 0. In the ‘show grader output’ section, I see the following message:
‘‘There was a problem compiling the code from your notebook. Please ensure it was saved before submission. Details: name ‘series_valid’ is not defined.’’

However, all the functions pass their tests within the notebook itself. Could you please help me resolve this issue?

Link to the classroom item you are referring to: link removed as it is against community guidelines

Hello! Welcome to the community!

I believe you may have changed something you shouldn’t have in the task. My suggestion is to restart the activity by following the instructions here. If possible, save your solutions before doing this and make sure to only modify or add your answer within the designated fields.

If this doesn’t solve the issue, feel free to send me your notebook so I can analyze it in more detail.

hi @Khdzjn

please refer below comment to debug your codes

Post.