Programming Assignment: course 1 Week 2 practice lab: Linear regression

I’ve tried to submit week2 assignment of course 1
Supervised Machine Learning: Regression and Classification,
the message as below,
Code Cell UNQ_C1: Function ‘compute_cost’ is incorrect. Check implementation.
Code Cell UNQ_C2: Function ‘compute_gradient’ is incorrect. Check implementation.
If you see many functions being marked as incorrect, try to trace back your steps & identify if there is an incorrect function that is being used in other steps.
This dependency may be the cause of the errors.

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I’m having the exact same problem. All of the in the lab pass and the predictions are all correct, but the grader still says the function is incorrect. Any progress?

I am having similar issues, can’t see any resolution being provided so far.

i am having the same issue can anyone how to resolve this as i need this certificate asap