Rails new app display error

I am trying to create new project using rails but it display error. I am working on mac and its display error.

$rails new EMS

/Users/.rvm/gems/ruby-2.2.0/bin/rails:23:in `load': cannot load such file -- /Users/.rvm/gems/ruby-2.2.0/gems/rails-4.2.0/bin/rails (LoadError)
    from /Users/.rvm/gems/ruby-2.2.0/bin/rails:23:in `<main>'
    from /Users/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `eval'
    from /Users/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `<main>'