Error Message Sequences, Time Series and Prediction C4W1 'name 'series_valid' is not defined

[TMosh]

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Why the series_valid is not defined

week-1 #deeplearning_ai_tensorflow_developer Week 1 Assignment 1: Having problems granding assignment: There was a problem compiling the code from your notebook, please check that you saved before submitting. Details: name ‘series_valid’ is not defined I did get a new version of the notebook and tried known to me remediation steps. What would you advise? Thanks a lot! [Screenshot (1555)] [Screenshot (1554)] screenshot removed as it contains grade cell codes. A mentor will ask you, if t…