ERROR: become_user is not a legal parameter in an Ansible task or handler

[BackIsBachus]

Hello,

I tried to deploy RocketChat on Debian Jessie using Ansible but when I run my playbook (which is the one used in your README) I get the following output:

 [WARNING]: It is unnecessary to use '{{' in loops, leave variables in loop
expressions bare.

ERROR: become_user is not a legal parameter in an Ansible task or handler

I am trying to install it on localhost (since it's just as a test), and I already managed to run a few simple playbooks on localhost before.
I have installed Ansible from the deb package manager so I am in 1.7.2 (I am quite new to Ansible too so it may also be an Ansible problem from my side unrelated to this).

Thanks!

[cmacrae]

Hey! Thanks for taking the time to raise this issue.
The reason you're seeing this problem is because your Ansible version is too old.
The become module was introduced in Ansible 1.9.4 - which is the version you should be running.

See Ansible's installation documentation to get 1.9.4 installed 👍

[gneutzling]

I had this problema and I did an upgrade to ansible 1.9.2 with using homebrew and worked fine.

[cmacrae]

@gneutzling Ansible 1.9.4 is still the minimum version required to run the Ansible 1 version of this code.