从Rails 3升级到Rails 4后，rails 4无法启动服务器

从导轨3升级到导轨4后，我无法在本地启动它。这只是在我的计算机上，因为与我一起工作的其他开发人员没有这种经历。我还必须卸载并再次安装ruby 2.1.2，因为显然它是在root下安装的（现在它在我的用户名下）。

$ bundle exec rails s
/Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/server.rb:3:in `require': cannot load such file -- action_dispatch (LoadError)
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/server.rb:3:in `<top (required)>'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:128:in `require'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:128:in `require_command!'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:74:in `server'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands.rb:17:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我也无法加载我的控制台

$ bundle exec rails c
/Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails.rb:5:in `require': cannot load such file -- active_support (LoadError)
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails.rb:5:in `<top (required)>'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/all.rb:1:in `require'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/all.rb:1:in `<top (required)>'
    from /Volumes/fiverr_dev/5rr_v2/config/application.rb:1:in `require'
    from /Volumes/fiverr_dev/5rr_v2/config/application.rb:1:in `<top (required)>'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:146:in `require'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:146:in `require_application_and_environment!'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:68:in `console'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /Users/ohad/.rvm/gems/ruby-2.1.2@project_gemset/gems/railties-4.1.6/lib/rails/commands.rb:17:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'


bundle install
Using rake 10.3.2
Using aasm 3.4.0
Using i18n 0.6.11
Using json 1.8.1
Using minitest 5.4.1
Using thread_safe 0.3.4
Using tzinfo 1.2.2
Using activesupport 4.1.6
.....