不兼容的库版本

当我尝试启动rails服务器时，我得到以下输出，并且服务器无法打开 . 红宝石和铁轨都是新手 .

/Users/Seth/.rvm/gems/ruby-2.2.4/gems/json-1.8.3/lib/json/ext.rb:13:in require': incompatible library version - /Users/Seth/.rvm/gems/ruby-2.2.4/gems/json-1.8.3/lib/json/ext/parser.bundle (fatal) from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/json-1.8.3/lib/json/ext.rb:13:in '来自/Users/Seth/.rvm/gems/ruby- 2.2.4 / gems / json-1.8.3 / lib / json / ext.rb：12：in <module:JSON>' from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/json-1.8.3/lib/json/ext.rb:9:in 'from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/json-1.8.3/ lib / json.rb：58：in require' from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/json-1.8.3/lib/json.rb:58:in 'from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/json-1.8.3/lib/json.rb:54:in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/activesupport-4.2.6/lib/active_support/core_ext/object/json.rb:2:in require'from / from Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/activesupport-4.2.6/lib/active_support/core_ext/object/json.rb:2:in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/activesupport-4.2.6/lib/active_support/core_ext/object.rb:12:in require'from / Users / Seth / . rvm/gems/ruby-2.2.4@global/gems/activesupport-4.2.6/lib/active_support/core_ext/object.rb:12:in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/configuration.rb:2:in require'from /Users/Seth/.rvm/gems/ruby-2.2 .4 @ global / gems / railties-4.2.6 / lib / rails / configuration.rb：2：in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/railtie.rb:2:in require'from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties- 4.2.6 / lib / rails / railtie.rb：2：in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/engine.rb:1:in require'from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/engine .rb：1：in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/application.rb:7:in require'from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems /railties-4.2.6/lib/rails/application.rb:7:in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails.rb:11:in require'from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/ rails.rb：11：in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/commands/server.rb:4:in require'from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/commands/server.rb:4:in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:123:in require'from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:123:in require_command!' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:73:in server'from / Users / Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in run_command!' from /Users/Seth/.rvm/gems/ruby-2.2.4@global/gems/railties-4.2.6/lib/rails/commands.rb:17:in '来自/ Users / Seth / railsbridge / test_app / bin / rails：9：in require' from /Users/Seth/railsbridge/test_app/bin/rails:9:in 'from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/spring-1.7.1/lib/spring/client/rails.rb:28:in load' from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/spring-1.7.1/lib/spring/client/rails.rb:28:in call'from / Users / Seth / .rvm / gems / ruby-2.2.4 / gems / spring-1.7.1 / lib / spring / client / command.rb:7:in call' from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/spring-1.7.1/lib/spring/client.rb:30:in run'from /Users/Seth/.rvm/gems/ ruby-2.2.4 / gems / spring-1.7.1 / bin / spring：49：in <top (required)>' from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/spring-1.7.1/lib/spring/binstub.rb:11:in load'from /Users/Seth/.rvm/gems/ruby-2.2.4/gems/spring-1.7.1/lib /spring/binstub.rb:11:in <top (required)>' from /Users/Seth/railsbridge/test_app/bin/spring:13:in require' from / Users / Seth / railsbridge / test_app / bin / spring：13：in <top (required)>' from bin/rails:3:in load ' from bin/rails:3:in `'