Class[Puppet_enterprise]: has no parameter named 'mcollective_middleware_hosts' on node mom.com

 PROBLEM:

Error: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Evaluation Error: Error while evaluating a Resource Statement, Class[Puppet_enterprise]: has no parameter named 'mcollective_middleware_hosts' on node mom.com

Warning: Not using cache on failed catalog

Error: Could not retrieve catalog; skipping run

SOLUTION:

https://puppet.com/docs/pe/2018.1/removing_mcollective.html

Essentially, go into the console >> PE Infrastructure >> Classes >> Class: puppet_enterprise

and remove mcollective parameter (for Puppet>5), or set it to "disabled" for Puppet 5.