ERROR! Unexpected Exception: 'AnsibleLoader' object has no attribute 'get_single_data'

Hello,
I installed 2.1.1.0 from a tarball. Installation went smooth but when attempts to run brings the following message:
ERROR! Unexpected Exception: ‘AnsibleLoader’ object has no attribute ‘get_single_data’
Please advise.

Vladimir.

You seem to be mixing versions, that API changed so the loader class you have is an older version.

Thank you, Brian, yes, I found an older version installed.

Older version removed and this one was rebuilt. Same error.
Any ideas?