role galaxy/playbook_help not found

[mrtuxa]

 mrtuxa  ~/deployment/matrix-docker-ansible-deploy git-[ master]-  ansible-playbook -i inventory/hosts setup.yml --tags=setup-all
ERROR! the role 'galaxy/playbook_help' was not found in /home/mrtuxa/deployment/matrix-docker-ansible-deploy/roles:/home/mrtuxa/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:/home/mrtuxa/deployment/matrix-docker-ansible-deploy

The error appears to be in '/home/mrtuxa/deployment/matrix-docker-ansible-deploy/setup.yml': line 8, column 7, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

# Most of the roles below are not distributed with the playbook, but downloaded separately using `ansible-galaxy` via the `just roles` command (see `justfile`).
- role: galaxy/playbook_help
  ^ here

[mitexleo]

What's the solution to this problem?

[spantaleev]

Running just roles or make roles to install the additional Ansible roles that this Ansible playbook depends on. These roles are described in the requirements.yml file.

The just roles (or make roles) step is mentioned at the top of the Installation documentation page.

For running just, you will need to install the tool. It's documented on the Prerequisites documentation page. Alternatively, one can also use make (and install the make tool).