# Deprecation Warning

**URL:** <https://www.ruby-forum.com/t/deprecation-warning/87321>\
**Category:** Rails\
**Created:** [March 1, 2007, 7:23pm UTC](https://www.ruby-forum.com/t/deprecation-warning/87321 "2007-03-01T19:23:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Lewis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/e9bcb4/32.png) [@Lewis](https://www.ruby-forum.com/u/Lewis)\
**Post date:** [March 1, 2007, 7:23pm UTC](https://www.ruby-forum.com/t/deprecation-warning/87321/1 "2007-03-01T19:23:08Z")

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I recently created a small app that searches a db and displays the  
search results. I then cloned the app, changed the model and started  
the clone up. The second app is Throwing out Deprecation warnings on  
@params. I understand that params should be used instead, what I am  
wondering however is why doesn’t the first app throw the Deprecation  
Warning. I can find no differences between the two.

Any suggestions.

Thanks,  
Lewis

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**Author:** ![Lewis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/e9bcb4/32.png) [@Lewis](https://www.ruby-forum.com/u/Lewis)\
**Post date:** [March 1, 2007, 8:33pm UTC](https://www.ruby-forum.com/t/deprecation-warning/87321/2 "2007-03-01T20:33:06Z")

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They’re using different versions of Rails. Check your environment.rb