msg: Failed to lock apt for exclusive operation

[natalja mazur]

Hi.

I try to run yaml via Web-UI Tower using ansible 1.8:

---
- name: setup steps that are not specific to a particular role or project
  hosts: all
  sudo: True
  user: rnd
  gather_facts: True

  tasks:

    - name: update apt cache
      apt:
        update_cache: yes

SSH password:
sudo password [defaults to SSH password]:
PLAY [setup steps that are not specific to a particular role or project]
 ****** GATHERING FACTS ***************************************************************
ok:
 [172.20.6.85] TASK: [ensure required base packages are present] *****************************
failed: [172.20.6.85] => (item=chrony,python-mysqldb,python-software-properties) => {"failed": true, "item": "chrony,python-mysqldb,python-software-properties"}
 msg: Failed to lock apt for exclusive operation
FATAL: all hosts have already failed -- aborting
PLAY RECAP ******************************************************************** to retry,
use: --limit @/var/lib/awx/openstack.yaml.retry 172.20.6.85 : ok=1 changed=0 unreachable=0 failed=1

What is the problem?

Thanks