Hi just cloned the x-platform project example and did a bundler update and it was fine.

But i tried running ./run.rb and bundler exec cucumber -p ios and its given me this:

lummy:x-platform-example seunare$ ./run.rb ios
Bundler version 1.9.2
Using the ios profile...
Feature: Initial experience
As a user I want a helpful and simple initial
experience with the app. I should be able to get help
and login to an existing WordPress site.

@info @reinstall
Scenario: Obtaining more information # features/login.feature:7
undefined method extend_world' for nil:NilClass (NoMethodError) /Users/seunare/.rvm/gems/ruby-2.2.0/gems/multi_test-0.1.1/lib/multi_test.rb:31:inextend_with_best_assertion_library'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/rb_support/rb_language.rb:121:in extend_world' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/rb_support/rb_language.rb:67:inbegin_rb_scenario'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/rb_support/rb_language.rb:101:in begin_scenario' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/language_support/language_methods.rb:14:inbefore'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:112:in block in fire_hook' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:111:ineach'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:111:in fire_hook' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime.rb:107:inbefore'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime.rb:98:in before_and_after' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime.rb:82:inblock in with_hooks'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:120:in call' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:120:inblock (3 levels) in around'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/language_support/language_methods.rb:9:in block in around' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/language_support/language_methods.rb:97:incall'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/language_support/language_methods.rb:97:in execute_around' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/language_support/language_methods.rb:8:inaround'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:119:in block (2 levels) in around' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:123:incall'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime/support_code.rb:123:in around' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime.rb:94:inaround'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime.rb:81:in with_hooks' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:13:inexecute'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/scenario.rb:32:in block in accept' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/scenario.rb:79:inwith_visitor'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/scenario.rb:31:in accept' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:58:inblock in visit_feature_element'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:170:in broadcast' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:57:invisit_feature_element'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/feature.rb:38:in block in accept' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/feature.rb:37:ineach'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/feature.rb:37:in accept' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:27:inblock in visit_feature'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:170:in broadcast' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:26:invisit_feature'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/features.rb:28:in block in accept' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/features.rb:17:ineach'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/features.rb:17:in each' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/features.rb:27:inaccept'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:21:in block in visit_features' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:170:inbroadcast'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/ast/tree_walker.rb:20:in visit_features' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/runtime.rb:49:inrun!'
/Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/lib/cucumber/cli/main.rb:47:in execute!' /Users/seunare/.rvm/gems/ruby-2.2.0/gems/cucumber-1.3.18/bin/cucumber:13:in<top (required)>'
/Users/seunare/.rvm/gems/ruby-2.2.0/bin/cucumber:23:in load' /Users/seunare/.rvm/gems/ruby-2.2.0/bin/cucumber:23:in