Grading for C2_W1_Assignment Ex 2,3 and4

I’m facing a problem with grading for C2_W1_Assignment despite all tests passing, and I have run it before submitting. Has anybody else faced the same problem?

To see why the grader is unhappy, you need to click on the > icons. That will open a text window that contains the grader feedback.


I am also having same problems what should i do???
please help me out

Please follow the instructions in my previous reply (from 3 months ago).