I keep receiving the following error for optional assignment C1 W2: NameError: name 'image2vector_test' is not defined

Course Q&A Deep Learning Specialization Neural Networks and Deep Learning
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I keep receiving the following error for optional assignment C1 W2: “NameError: name ‘image2vector_test’ is not defined” for Exercise 5

Exercise 5 - image2vector

Implement image2vector() that takes an input of shape (length, height, 3) and returns a vector of shape (lengthheight3, 1). For example, if you would like to reshape an array v of shape (a, b, c) into a vector of shape (a*b,c) you would do:

v = v.reshape((v.shape[0] * v.shape[1], v.shape[2])) # v.shape[0] = a ; v.shape[1] = b ; v.shape[2] = c
  • Please don’t hardcode the dimensions of image as a constant. Instead look up the quantities you need with image.shape[0], etc.
  • You can use v = v.reshape(-1, 1). Just make sure you understand why it works.
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Hi @Samaghniaey ,

This is due to the execution environment is not up-to-date. To do a clean run:
kernel → restart and clear all output
rerun cell from start of your notebook.

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