Fix ansible-playbook error: "ERROR! the role 'zzet.rbenv' was not found in ..."

I am running ansible like so:

ansible-playbook -i hosts setup_my_host_name.yml

I am getting the error:

ERROR! the role 'zzet.rbenv' was not found in /Users/user_name/repo_name/roles:/Users/user_name/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:/Users/user_name/repo_name

The error appears to be in '/Users/user_name/repo_name/setup_my_host_name.yml': line 83, column 7, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

  roles:
    - role: zzet.rbenv
      ^ here

The relevant lines from the yml file are:

  roles:
    - role: zzet.rbenv

How can I fix the error? Is there anything missing in my ansible installation?

Install the missing role:

ansible-galaxy install zzet.rbenv

Output:

Starting galaxy role install process
- downloading role 'rbenv', owned by zzet
- downloading role from https://github.com/zzet/rbenv/archive/3.6.0.tar.gz
- extracting zzet.rbenv to /Users/user_name/.ansible/roles/zzet.rbenv
- zzet.rbenv (3.6.0) was installed successfully

REFERENCES:

• Ansible Playbooks vs Roles
• Installing roles from Galaxy: https://docs.ansible.com/ansible/latest/galaxy/user_guide.html#installing-roles-from-galaxy

SEE ALSO:

• CodeGnome/centos7-lapp-qa: Minimalist LAPP stack environment for integration testing with Cucumber and Capybara: https://github.com/CodeGnome/centos7-lapp-qa
• Ansible playbook ERROR! the role 'Juniper.junos' was not found in /home/
• Ansible not seeing host list or role
• Ansible, role not found error