# Rake test problem

**URL:** <https://www.ruby-forum.com/t/rake-test-problem/109667>\
**Category:** Rails\
**Created:** [July 17, 2007, 6:37pm UTC](https://www.ruby-forum.com/t/rake-test-problem/109667 "2007-07-17T18:37:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Radu\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/ec9cab/32.png) [@Radu\_S](https://www.ruby-forum.com/u/Radu_S)\
**Post date:** [July 17, 2007, 6:37pm UTC](https://www.ruby-forum.com/t/rake-test-problem/109667/1 "2007-07-17T18:37:47Z")

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Hi,

I’m getting weird lock\_mutex undefined errors when running tests.

I tried creating a new application having just acts\_as\_authenticated  
installed.

Running rake test returns errors like:

test\_should\_require\_password\_on\_signup(AccountControllerTest):  
NoMethodError: undefined method `lock\_mutex’ for  
ActiveRecord::Base:Class

/usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active\_record/base.rb:1235:in  
`method_missing' /usr/lib/ruby/1.8/active_record/fixtures.rb:490:in`setup\_with\_fixtures’  
/usr/lib/ruby/1.8/active\_record/fixtures.rb:522:in `setup’

I am running rails 1.2.3 with activerecord 1.15.3.

–  
Radu S.