Ansible fileinline not working with loop - yaml

Question

I am trying to add or edit multiple lines in a file using lineinfile but not working. I am using below code with no luck Ref: ansible: lineinfile for several lines?
# vim /etc/ansible/playbook/test-play.yml
- hosts: tst.wizvision.com
tasks:
- name: change of line
lineinfile:
dest: /root/test.txt
regexp: "{{ item.regexp }}"
line: "{{ item.line }}"
backrefs: yes
with_items:
- { regexp: '^# line one', line: 'NEW LINE ONE' }
- { regexp: '^# line two', line: 'NEW LINE TWO' }
Ansible Error:
# ansible-playbook test-2.yml
TASK [change of line] **********************************************************
fatal: [localhost]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'item' is undefined\n\nThe error appears to have been in '/etc/ansible/playbook/test-2.yml': line 3, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n tasks:\n - name: change of line\n ^ here\n"}

Answer 1

Your with_items is not indented correctly within the task.
with_items should be at the level of the module, not as a parameter to the module itself. In your case, you are passing with_items as a parameter to lineinfile module, and ansible is complaining that there is no parameter as with_items for lineinfile module.
Your task should look something like this -
tasks:
- name: change of line
lineinfile:
dest: /root/test.txt
regexp: "{{ item.regexp }}"
line: "{{ item.line }}"
backrefs: yes
with_items:
- { regexp: '^# line one', line: 'NEW LINE ONE' }
- { regexp: '^# line two', line: 'NEW LINE TWO' }