# Error with unit tests and EdgeRails

**URL:** <https://www.ruby-forum.com/t/error-with-unit-tests-and-edgerails/137358>\
**Category:** Rails\
**Created:** [May 12, 2008, 11:26am UTC](https://www.ruby-forum.com/t/error-with-unit-tests-and-edgerails/137358 "2008-05-12T11:26:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ss\_1982](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/96bed5/32.png) [@ss\_1982](https://www.ruby-forum.com/u/ss_1982)\
**Post date:** [May 12, 2008, 11:26am UTC](https://www.ruby-forum.com/t/error-with-unit-tests-and-edgerails/137358/1 "2008-05-12T11:26:32Z")

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Hi,

Recently when attempting to run unit tests whin edge rails, I have  
started to recive the following error.

rake aborted!  
undefined method `dump\_schema\_information’ for  
#ActiveRecord::ConnectionAdapters::MysqlAdapter:0x44d3bf0

After doing a search for the dump\_schema\_information method, it is found  
to only appear in databases.rake file (line 261)

Has anyone got any suggestions to why this method is now missing?

Thanks