# ERROR! Unexpected Exception: 'AnsibleLoader' object has no attribute 'get\_single\_data'

**URL:** <https://forum.ansible.com/t/error-unexpected-exception-ansibleloader-object-has-no-attribute-get-single-data/22570>\
**Category:** Ansible Project\
**Created:** [September 16, 2016, 3:47pm UTC](https://forum.ansible.com/t/error-unexpected-exception-ansibleloader-object-has-no-attribute-get-single-data/22570 "2016-09-16T15:47:22Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Vladimir\_Pevzner](https://avatars.discourse-cdn.com/v4/letter/v/3bc359/32.png) [@Vladimir\_Pevzner](https://forum.ansible.com/u/Vladimir_Pevzner)\
**Post date:** [September 16, 2016, 3:47pm UTC](https://forum.ansible.com/t/error-unexpected-exception-ansibleloader-object-has-no-attribute-get-single-data/22570/1 "2016-09-16T15:47:22Z")

</div>

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.

---

<div class="post-metadata">

**Author:** ![Brian\_Coca](https://avatars.discourse-cdn.com/v4/letter/b/6de8d8/32.png) [@Brian\_Coca](https://forum.ansible.com/u/Brian_Coca)\
**Post date:** [September 16, 2016, 4:10pm UTC](https://forum.ansible.com/t/error-unexpected-exception-ansibleloader-object-has-no-attribute-get-single-data/22570/2 "2016-09-16T16:10:50Z")

</div>

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

---

<div class="post-metadata">

**Author:** ![Vladimir\_Pevzner](https://avatars.discourse-cdn.com/v4/letter/v/3bc359/32.png) [@Vladimir\_Pevzner](https://forum.ansible.com/u/Vladimir_Pevzner)\
**Post date:** [September 16, 2016, 8:52pm UTC](https://forum.ansible.com/t/error-unexpected-exception-ansibleloader-object-has-no-attribute-get-single-data/22570/3 "2016-09-16T20:52:33Z")

</div>

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

---

<div class="post-metadata">

**Author:** ![Vladimir\_Pevzner](https://avatars.discourse-cdn.com/v4/letter/v/3bc359/32.png) [@Vladimir\_Pevzner](https://forum.ansible.com/u/Vladimir_Pevzner)\
**Post date:** [September 19, 2016, 3:55pm UTC](https://forum.ansible.com/t/error-unexpected-exception-ansibleloader-object-has-no-attribute-get-single-data/22570/4 "2016-09-19T15:55:03Z")

</div>

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