Hi I am attempting to trouble shoot this error "argument of type 'NoneType' is not iterable"

I am geting this when I attempt to use I understand that “argument of type ‘NoneType’ is not iterable” may be due to none being being passed as a variable?

how can I find out exactly where the “argument of type ‘NoneType’ is not iterable” in this error , what is it exactly referring to ?

how can I track down this error , what is it talking about ? how can I get more information ?

1;30mtask path: /var/lib/awx/projects/_22__openshift_ansible_source_installation/roles/openshift_master/tasks/main.yml:146 [0m
[0;31mfatal: [ip-10-25-10-212.ec2.internal]: FAILED! => {
“failed”: true,
“msg”: “Unexpected templating type error occurred on ({{ openshift.master.identity_providers | translate_idps(‘v1’, openshift.common.version, openshift.common.deployment_type) }}): argument of type ‘NoneType’ is not iterable”