# Ansible failed to complete successfully

**URL:** https://discourse.roots.io/t/ansible-failed-to-complete-successfully/5990
**Category:** trellis
**Created:** 2016-02-22T09:08:09Z
**Posts:** 29
**Showing post:** 14 of 29

## Post 14 by @silumesii — 2017-09-21T08:04:08Z

Hello!

I (accidentally) upgraded my version of `ansbile` on Ubuntu 16.04 Desktop this week. I am now on version 2.4.

```
$ ansible --version
ansible 2.4.0.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/<username>/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.12 (default, Nov 19 2016, 06:48:10) [GCC 5.4.0 20160609]
```

Since the update, I can’t get Trellis to successfully deploy to development, staging or production.

The error I get running `vagrant up --provision` is:

```
ERROR! Unexpected Exception, this is probably a bug: No module named six
to see the full traceback, use -vvv
Ansible failed to complete successfully. Any error output should be
visible above. Please fix these errors and try again.
```

As far as I can tell, I have `six` installed.

Using apt:

```
$ dpkg -l | grep six
ii python-six 1.10.0-3 all Python 2 and 3 compatibility library (Python 2 interface)
ii python3-six 1.10.0-3 all Python 2 and 3 compatibility library (Python 3 interface)
```

Using pip:

```
$ pip list | grep six
six (1.10.0)
```

I stumbled on [this](https://github.com/ansible/ansible/issues/24628) issue on GitHub. Not sure if it is related.

Help?

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