Question

当我尝试使用“rails server --debugger”在调试器模式下运行rails服务器时。我在控制台上收到以下错误。

/home/navyug/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/ext/module.rb:36:in `const_missing': uninitialized constant Debugger::LocalInterface::Readline (NameError)
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug/interface.rb:55:in `block (2 levels) in initialize'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug/interface.rb:53:in `each'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug/interface.rb:53:in `block in initialize'
    from /home/navyug/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/open-uri.rb:35:in `open'
    from /home/navyug/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/open-uri.rb:35:in `open'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug/interface.rb:52:in `initialize'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug/processor.rb:61:in `new'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug/processor.rb:61:in `initialize'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug.rb:9:in `new'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug.rb:9:in `<module:Debugger>'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/ruby-debug19-0.11.6/cli/ruby-debug.rb:8:in `<top (required)>'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.7/lib/rails/rack/debugger.rb:9:in `initialize'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/rack-1.4.1/lib/rack/server.rb:295:in `new'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/rack-1.4.1/lib/rack/server.rb:295:in `block in build_app'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/rack-1.4.1/lib/rack/server.rb:291:in `reverse_each'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/rack-1.4.1/lib/rack/server.rb:291:in `build_app'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/rack-1.4.1/lib/rack/server.rb:252:in `start'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.7/lib/rails/commands/server.rb:70:in `start'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.7/lib/rails/commands.rb:55:in `block in <top (required)>'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.7/lib/rails/commands.rb:50:in `tap'
    from /home/navyug/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.7/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

RubyGems环境

RUBYGEMS版本：1.8.24
RUBY VERSION：1.9.3（2012-04-20 patchlevel 194）[i686-linux]
安装目录：/home/navyug/.rvm/gems/ruby-1.9.3-p194
RUBY EXECUTABLE：/home/navyug/.rvm/rubies/ruby-1.9.3-p194/bin/ruby
可执行目录：/home/navyug/.rvm/gems/ruby-1.9.3-p194/bin
RUBYGEMS PLATFORMS：
- 红宝石
- x86的Linux的
GEM路径：
- /home/navyug/.rvm/gems/ruby-1.9.3-p194
- /home/navyug/.rvm/gems/ruby-1.9.3-p194@global
GEM配置：
- ：update_sources =＆gt;真
- ：verbose =＆gt;真
- ：benchmark =＆gt;假
- ：backtrace =＆gt;假
- ：bulk_threshold =＆gt; 1000
远程来源：
- http://rubygems.org/

Answer 1

我认为您的设置中缺少Readline包。由于您使用的是RVM，请尝试通过rvm安装readline包。这些链接可能会有所帮助：

rails服务器处于调试模式

1 个答案: