Question

刚安装了Ruby 2.3.0和rails 4.2.6，并在使用rails server命令时出现此错误

/Users/.rvm/gems/ruby-2.3.0@global/gems/rack-1.6.4/lib/rack/handler.rb:43:in `pick': Couldn't find handler for: thin, puma, webrick. (LoadError)
    from /Users/.rvm/gems/ruby-2.3.0@global/gems/rack-1.6.4/lib/rack/handler.rb:59:in `default'
    from /Users/.rvm/gems/ruby-2.3.0@global/gems/rack-1.6.4/lib/rack/server.rb:290:in `server'
    from /Users/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:125:in `print_boot_information'
    from /Users/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:75:in `start'
    from /Users/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:80:in `block in server'
    from /Users/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap'
    from /Users/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server'
    from /Users/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    from /Users/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
    from /Users/Documents/ruby/webapp/bin/rails:9:in `require'
    from /Users/Documents/ruby/webapp/bin/rails:9:in `<top (required)>'
    from /Users/.rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client/rails.rb:28:in `load'
    from /Users/.rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client/rails.rb:28:in `call'
    from /Users/.rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client/command.rb:7:in `call'
    from /Users/.rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client.rb:28:in `run'
    from /Users/.rvm/gems/ruby-2.3.0/gems/spring-1.6.4/bin/spring:49:in `<top (required)>'
    from /Users/.rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `load'
    from /Users/.rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `<top (required)>'
    from /Users/.rvm/rubies/ruby-2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Users/.rvm/rubies/ruby-2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Users/Documents/ruby/webapp/bin/spring:13:in `<top (required)>'
    from bin/rails:3:in `load'
    from bin/rails:3:in `<main>'

Answer 1

你安装了node.js吗？ sudo apt-get update sudo apt-get install nodejs

安装新的rails new generate时出错

1 个答案: