I've confirmed cucumber tests work fine without bundler, but with bundler it breaks. This is the error I get:

You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.each (NoMethodError)
/home/senthil/rails/othersprograms/nmicho-teambox/vendor/plugins/cucumber/lib/cucumber/formatter/console.rb:148:in `record_tag_occurrences'
/home/senthil/rails/othersprograms/nmicho-teambox/vendor/plugins/cucumber/lib/cucumber/formatter/pretty.rb:71:in `before_feature_element'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:190:in `__send__'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:190:in `send_to_all'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:188:in `each'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:188:in `send_to_all'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:179:in `broadcast'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:50:in `visit_feature_element'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/feature.rb:26:in `accept'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/feature.rb:25:in `each'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/feature.rb:25:in `accept'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:20:in `visit_feature'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:180:in `broadcast'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:19:in `visit_feature'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/features.rb:29:in `accept'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/features.rb:17:in `each'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/features.rb:17:in `each'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/features.rb:28:in `accept'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:14:in `visit_features'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:180:in `broadcast'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/ast/tree_walker.rb:13:in `visit_features'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/cli/main.rb:61:in `execute!'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/../lib/cucumber/cli/main.rb:20:in `execute'
/var/lib/gems/1.8/gems/cucumber-0.6.1/bin/cucumber:8
/var/lib/gems/1.8/bin/cucumber:19:in `load'
/var/lib/gems/1.8/bin/cucumber:19

I've searched all over Google and nothing. Oh btw the above tests is when I was trying to run cucumber tests in Teambox app. I've downloaded it fresh and it still breaks. But if I use their old versions where they didn't not have bundler installed, it works fine.

Can anyone help? Thanks