I’m getting this error when submitting my C2_W3 assignment: Cell #29. Can’t compile the student’s code. Error: NameError(“name ‘build_and_train_model’ is not defined”) I’ve defined the full build_and_train_model() function directly inside Cell #29, included all necessary imports, and followed the …

Hello, @Mark29 , Welcome to our community! That should be for the code cell with the exercise code #UNQ_C5, right? The default code structure for that cell is that it (1) sets the seed, (2) define model_r and (3) compile model_r. It does not require any function named build_and_train_model, and fun…

Hi Raymond Just wanted to circle back and say thank you for offering insights and support on my earlier Cell #29 and grading issues for the C2_W3 assignment. After a lot of trial and error — and a huge thanks to your insights — I was finally able to get the notebook structure right. The key was un…

Re-organizing the notebook is a very bad idea. You’re working against how the notebook is designed to be used. I recommend you rename your current notebook and get a fresh copy, so that you learn how to avoid this type of issue in the remainder of the course.

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Course Q&A Machine Learning Specialization Advanced Learning Algorithms

rmwkwok July 1, 2025, 1:47am 5

Mark, it’s great to hear that you have found your way!

Cheers,
Raymond

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