[ERROR] type object 'CLI' has no attribute 'read_vault_password_file'

[greenpau]

During data collection, received the following error:

PLAY [data collection] *********************************************************************************************************************************************************
[ERROR] type object 'CLI' has no attribute 'read_vault_password_file'

This issue is originating from plugins/callback/ndmtk.py:

/usr/lib/python2.7/site-packages/ndmtk/plugins/callback/ndmtk.py:                _safe_lockpick = CLI.read_vault_password_file(_lockpick, loader=_safe_loader);

Per ansible/ansible#30824, The code in inventory.py only uses read_vault_password_file if run on version <2.4 (by checking for the CLI._play_prereqs attr). For 2.4, CLI.setup_vault_secrets() is used.