/usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/application/lib/application/clipboard.rb:63:in `check_for_changes': undefined method `join' for nil:NilClass (NoMethodError)
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/application/lib/application/clipboard.rb:41:in `length'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/edit_view/lib/edit_view.rb:41:in `sensitivities'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/application/lib/application/sensitivity.rb:65:in `call'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/application/lib/application/sensitivity.rb:65:in `recompute'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/application/lib/application/sensitivity.rb:77:in `connect_listeners'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/core/lib/core/observable.rb:103:in `call'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/core/lib/core/observable.rb:103:in `run_blocks'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/core/lib/core/observable.rb:103:in `each'
	 ... 15 levels...
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/plugins/core/lib/core/gui.rb:39:in `start'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/lib/redcar/boot.rb:75:in `pump'
	from /usr/lib/ruby/gems/1.8/gems/redcar-0.3.2dev/lib/redcar/../../bin/redcar:14