LANG of host imported by ssh messing up client, failing install

[zurgutt]

...
failed: [host0] => (item=oracle-java7-installer,oracle-java7-set-default) => {"failed": true, "item": "oracle-java7-installer,oracle-java7-set-default"}
stderr: perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_TIME = "et_EE.UTF-8",

...

Solution from: ansible/ansible#10698
Make sure you have module_lang set in ansible.cfg (is not set if config file is from older verion)

[ezeteze]

Do an ansible --version and check the version you are using. Latest atm is 1.9.2. ubuntu package manager has an old version so either install it from source or pypi.