Help me solve this issue: "There was a problem compiling the code from your notebook, please check that you saved before submitting. Details: name 'series_valid' is not defined"

[Deepti_Prasad]

the below post comment has 3 solution linked post, go through them, to debug your codes. A feedback like series_valid is not defined, is usually indicative, you probably not using the right function or right way to get a return function. For example if it was told you use a range, you need to use the right variable recall instead of using len function to the designated time period range.

"There was a problem compiling the code from your notebook, please check that you saved before submitting. Details: name 'series_valid' is not defined"

please go through these post comments in detail to debug your codes Solution 1 Solution 2 Solution 3 let me know if issue still persist.

Regards
DP