# Error: A copy of ApplicationHelper has been removed from

**URL:** <https://www.ruby-forum.com/t/error-a-copy-of-applicationhelper-has-been-removed-from/152817>\
**Category:** Rails\
**Created:** [November 7, 2008, 6:33pm UTC](https://www.ruby-forum.com/t/error-a-copy-of-applicationhelper-has-been-removed-from/152817 "2008-11-07T18:33:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![thabenksta](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/97f17d/32.png) [@thabenksta](https://www.ruby-forum.com/u/thabenksta)\
**Post date:** [November 7, 2008, 6:33pm UTC](https://www.ruby-forum.com/t/error-a-copy-of-applicationhelper-has-been-removed-from/152817/1 "2008-11-07T18:33:37Z")

</div>

Hello.

I just started getting this error but can’t figure out what I did in the  
past day that might be causing this:  
“A copy of ApplicationHelper has been removed from the module tree but  
is still active!”

Apparently, there are others that have seen this – gathering from a  
google search – but I can’t find any solution.

Has anyone seen this? Here is what I’ve done recently:

1. Added ssl plugin
2. Added a couple [authorize.net](http://authorize.net) ruby code to my lib/ dir:  
[http://developer.authorize.net/samplecode/](http://developer.authorize.net/samplecode/)

Thanks.