Week3 assignment: final score is zero but I passed 5 exercise

Hi all,
I submitted my assignment. I could receive “all tests passed” for 5 exercises but I couldn’t write the exact code for exercise 4 but it still showed my grade zero. what should I do exactly?

For most assignments, you have to pass all of the sections to get a grade.
“all tests passed” only refers to the tests that are in the notebook. The grader uses different tests.

It will help if you post a screen capture image of your feedback from the grader.

after a few minutes, I could solve the error of exercise 4 and I could pass this assignment. thanks for your reply