Rails - Dec 2004 - fixture problem, TypeError: nil is not a symbol

When I run rake against Rails 8.5 to test unaltered model tests with 
yaml fixtures I get the error and stack trace reproduced below for every 
one of my model objects. Has anyone seen something this before? Any idea 
what could be going on here?

The following ruby-talk thread may or may not be relevant: 
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/95301.


Thanks much,

John-Mason


Sample Stack Trace:
---------------------------------------
   1) Error:
test_truth(ArtifactTest):
TypeError: nil is not a symbol
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:168:in
`const_get''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:168:in
`find''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:78:in
`instantiate_fixtures''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:78:in
`each''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:78:in
`instantiate_fixtures''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:76:in
`each_with_index''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:76:in
`each''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:76:in
`each_with_index''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:76:in
`instantiate_fixtures''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:249:in
`instantiate_fixtures''
 
./test/unit/../../config/environments/../../vendor/activerecord/lib/active_record/fixtures.rb:234:in
`setup''


Sample Test:
---------------------------------------
require File.dirname(__FILE__) + ''/../test_helper''
require ''team''

class TeamTest < Test::Unit::TestCase
   fixtures :teams

   # Replace this with your real tests
   def test_truth
     assert true
   end
end


Sample YAML fixture:
---------------------------------------
name: one
data:
   id: 1
   name: ePen


Sample model:
---------------------------------------
require ''active_record''

class Team < ActiveRecord::Base

   has_many :products, :dependent => true

end

> When I run rake against Rails 8.5 to test unaltered model tests with  
> yaml fixtures I get the error and stack trace reproduced below for  
> every one of my model objects. Has anyone seen something this before?  
> Any idea what could be going on here?
It looks like you''re using the beta gems with the old yaml format? You
can read about the new format on:  
http://dev.rubyonrails.org/trac.cgi/file/trunk/activerecord/lib/ 
active_record/fixtures.rb
--
David Heinemeier Hansson,
http://www.basecamphq.com/   -- Web-based Project Management
http://www.rubyonrails.org/  -- Web-application framework for Ruby
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http://www.loudthinking.com/ -- Broadcasting Brain

David,

Thanks for the tip. I''ll try this new format.

 > It looks like you''re using the beta gems with the old yaml
format?

Actually I am running 0.8.5; just did the download again and a diff to 
make sure. I also looked at trac, as you suggested and the version of 
fixtures.rb that shipped with 0.8.5 is not any of the revisions listed 
there--and its comments do not mention a the new format. Is this because 
0.8.5 was released out of CVS?

John-Mason

David,

Unfortunately the new format doesn''t solve the problem:

YamlFixture::YamlFormatError: ./test/unit/../fixtures/teams/team.yml: 
yaml fixture missing name and data: ---

John-Mason