The latest check_netapp_pro release v4.0.0 was delivered with a missing file required_perl_modules.txt. If necessary, you can fetch the file manually using the following link:

required_perl_modules.txt

This file omission will be fixed in v4.0.2, due for release mid-November 2018 after which time it will be available from the Q-Portal. For more information on exactly what has changed and when, please check out the release history.