W2_A1_ValidateApp Error_Test failing on 6 cells

[ValidateApp | INFO] Validating ‘/home/jovyan/work/submitted/courseraLearner/W2A1/Python_Basics_with_Numpy.ipynb’
[ValidateApp | INFO] Executing notebook with kernel: python3
Tests failed on 6 cell(s)! These tests could be hidden. Please check your submission.

It sounds like most of the tests are failing on your code. Are you sure that all the tests pass when you run the code in the notebook? Notice that there’s a cell that fails when you try to use basic_sigmoid with a vector input. You need to comment out that line, so that the execution doesn’t stop there. Then do:

  1. Kernel → Restart and Clear Output
  2. Save
  3. Cell → Run All

Then page carefully through the notebook and check the output of all the test cells. Do any of them fail?

Be sure you have not re-named your notebook file. The grader only uses the original file name.

This has been my output throughout the exercise.
I don’t know where the error is coming from.

This is the name of the file, am I wrong?

That is the correct file name.

Have you completed all of the parts of the assignment? You cannot grade a partially-completed notebook.

Yes. I have completed the assignment

This is what I had. but I have passed all the test in the various cells

For those who find this thread later:

The issue was the use of a hard-coded value in the sigmoid() function.