unsupported parameter

My Playbook:

My Playbook:
---
- name: test
gather_facts: yes
hosts: localhost
connection: local
tasks:
- name: install httpd
yum:
name: httpd
state: present
when:
- ansible_distribution == "RedHat"
- ansible_memfree_mb > 1512

I get below error
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Please post the actual error as *text*

Regards
        Racke

indentation for when is off. It should be aligned to yum

Thankyou it worked.