spork doesn't work with test_notifer/rspec

[drewB]

There is a wonderful gem call test_notifer (http://github.com/fnando/
test_notifier) that gives you desktop notifications of the results
when your tests complete (so you don't have to look at the
terminal).

Unfortunately, spork and test_notifer don't seem to play nice together
when running rspec (I haven't tried it with other frameworks). If you
require test_notifer/rspec in spec helper everything works great when
spork isn't running but if you try to run spork you get the follow
errors:

undefined method `map' for nil:NilClass (NoMethodError)
/usr/local/lib/site_ruby/1.8/rubygems.rb:270:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems.rb:296:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems.rb:295:in `each'
/usr/local/lib/site_ruby/1.8/rubygems.rb:295:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems.rb:296:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems.rb:295:in `each'
/usr/local/lib/site_ruby/1.8/rubygems.rb:295:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:35:in
`require'
/path_to_rails_app/spec/spec_helper.rb:4
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/lib/spork/test_framework.rb:
138:in `load'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/lib/spork/test_framework.rb:
138:in `preload'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/lib/spork/app_framework/
rails.rb:121:in `preload'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/lib/spork/test_framework.rb:
134:in `preload'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/bin/../lib/spork.rb:57:in
`exec_prefork'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/lib/spork/test_framework.rb:
120:in `preload'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/lib/spork/run_strategy/
forking.rb:23:in `preload'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/bin/../lib/spork/runner.rb:
74:in `run'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/bin/../lib/spork/runner.rb:
9:in `run'
/usr/lib/ruby/gems/1.8/gems/spork-0.7.5/bin/spork:10
/usr/bin/spork:19:in `load'
/usr/bin/spork:19

Any ideas on how to get this to work?