# Migration Errors? **URL:** \ **Category:** Rails\ **Created:** [February 17, 2006, 3:31am UTC](https://www.ruby-forum.com/t/migration-errors/53928 "2006-02-17T03:31:07Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![daveh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/85e7bf/32.png) [@daveh](https://www.ruby-forum.com/u/daveh)\ **Post date:** [February 17, 2006, 3:31am UTC](https://www.ruby-forum.com/t/migration-errors/53928/1 "2006-02-17T03:31:07Z")
Hi there, I just bought the Rails Recipes and PDF preview of the book. So far it’s excellent. I decided to try Chapter 8 of the book regarding tagging. I’ve done migrations before, and I feel comfortable with them, however this error stumps me. * * * ## antrover:~/RubyProjects/rlog dhoefler$ ruby script/generate migration add\_db\_tagging /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active\_support/core\_ext/hash/keys.rb:48:in `assert_valid_keys': Unknown key(s): polymorphic (ArgumentError) from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/associations.rb:519:in`belongs\_to\_without\_reflection’ from (eval):5:in `belongs_to' from script/../config/../vendor/plugins/acts_as_taggable/lib/tagging.rb:3 from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:207:in`load’ from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active\_support/dependencies.rb:207:in `load' from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:39:in`require\_or\_load’ from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active\_support/dependencies.rb:22:in `depend_on' from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:30:in`associate\_with’ … 35 levels… from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:21:in `require__' from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in`require’ from /Applications/Locomotive/Bundles/rails-1.0.0-min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active\_support/dependencies.rb:214:in `require’ from script/generate:3 As you can see I’m running Locomotive on OS X 10.4.5. I have Rails 1.0. Right before I tried the migration I ran the following: ruby script/plugin install acts\_as\_taggable This is odd because I’ve done migrations before without any problem on my Mac. All of a sudden they just stopped working. Any ideas? Thank you, Dave H. ---
**Author:** ![daveh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/85e7bf/32.png) [@daveh](https://www.ruby-forum.com/u/daveh)\ **Post date:** [February 17, 2006, 3:34am UTC](https://www.ruby-forum.com/t/migration-errors/53928/2 "2006-02-17T03:34:09Z")
I know you need to get Edge Rails for it too work. rake freeze\_edge… is one way of doing it I don’t know for sure if that is what is causing you the problem but it will be a problem nevertheless :-). Try it. On 16-Feb-06, at 9:29 PM, Dave H. wrote: > antrover:~/RubyProjects/rlog dhoefler$ ruby script/generate migration > from script/…/config/…/vendor/plugins/acts\_as\_taggable/ > min.bundle/Contents/Resources/ports/lib/ruby/gems/1.8/gems/ > … 35 levels… > activesupport-1.2.5/lib/active\_support/dependencies.rb:214:in > my Mac. All of a sudden they just stopped working. > > Any ideas? > > Thank you, > Dave H. > > * * * > > Rails mailing list > removed\_email\_address@domain.invalid > [http://lists.rubyonrails.org/mailman/listinfo/rails](http://lists.rubyonrails.org/mailman/listinfo/rails) John K. [http://www.kopanas.com](http://www.kopanas.com) ===================================================================== [http://www.soen.info](http://www.soen.info) - source of the freshest software engineering information on the net [http://cusec.soen.info](http://cusec.soen.info) - software engineering conference ---
**Author:** ![daveh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/85e7bf/32.png) [@daveh](https://www.ruby-forum.com/u/daveh)\ **Post date:** [February 17, 2006, 3:55am UTC](https://www.ruby-forum.com/t/migration-errors/53928/3 "2006-02-17T03:55:17Z")
Ok… I’ll have to try that. For now I just deleted the whole acts\_as\_taggable directory under vendor/plugins. I can now do migrations again. 🙂 I’ll come back to that chapter at a later time. Thanks for the info! -Dave ---
**Author:** ![daveh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/85e7bf/32.png) [@daveh](https://www.ruby-forum.com/u/daveh)\ **Post date:** [February 22, 2006, 11:23pm UTC](https://www.ruby-forum.com/t/migration-errors/53928/4 "2006-02-22T23:23:36Z")
On 2/16/06, Dave H. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Ok… I’ll have to try that. > > For now I just deleted the whole acts\_as\_taggable directory under > vendor/plugins. I can now do migrations again. 🙂 I’ll come back to > that chapter at a later time. > > Thanks for the info! > > -Dave Hi Dave. Sorry I missed this when you originally posted it. You do indeed need Edge Rails for acts\_as taggable. The new version of the book walks you through how to get onto Edge Rails. – Chad F. [http://chadfowler.com](http://chadfowler.com) [http://pragmaticprogrammer.com/titles/fr\_rr/](http://pragmaticprogrammer.com/titles/fr_rr/) (Rails Recipes - In Beta!) [http://pragmaticprogrammer.com/titles/mjwti/](http://pragmaticprogrammer.com/titles/mjwti/) (My Job Went to India, and All I Got Was This Lousy Book) [http://rubycentral.org](http://rubycentral.org) [http://rubygarden.org](http://rubygarden.org) [http://rubygems.rubyforge.org](http://rubygems.rubyforge.org) (over one million gems served!)