Question

更新：在我尝试在其他地方找到解决方案时，我可能搞砸了我的系统。我从零开始，安装Ruby 1.9.3顺利安装。现在试着让ree-1.8.7和...一起玩得很好......

我正在尝试使用RVM在Kubuntu上安装Ruby 1.9.3（我相信11.10）。到目前为止，我一直有很多关于Readline的问题，但除此之外我找到了答案。

我用这种方式安装了Ruby 1.9.3：

rvm install 1.9.3
# Install of ruby-1.9.3-p0 - #complete 
cd ~/.rvm/src/ruby-1.9.3-p0/ext/readline/
~/.rvm/src/ruby-1.9.3-p0/ext/readline $ ../../ruby extconf.rb --with-editline-dir="/usr" --with-readline-dir="/usr"
# any other way of doing this resulted in simply readline not being loaded when trying to start the console
# I have libreadline6 and libreadline6-dev installed (and all the packages requested in `rvm requirements`
make install
# compiling readline.c                                                                                                                                                                                      
# linking shared-object readline.so                                                                                                                                                                         
# /usr/bin/install -c -m 0755 readline.so /home/mbillard/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/x86_64-linux                                                                                    
# installing default readline libraries

到目前为止，一切看起来都运行正常但是当我尝试启动控制台时，我收到了这个错误：

/home/mbillard/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/completion.rb:9:in `require': /home/mbillard/.rvm/usr/lib/libreadline.so.6: undefined symbol: UP - /home/mbillard/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/x86_64-linux/readline.so (LoadError)
  from /home/mbillard/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/completion.rb:9:in `<top (required)>'
  from /home/mbillard/.rvm/gems/ruby-1.9.3-p0@taskman/gems/railties-3.2.1/lib/rails/commands/console.rb:3:in `require'
  from /home/mbillard/.rvm/gems/ruby-1.9.3-p0@taskman/gems/railties-3.2.1/lib/rails/commands/console.rb:3:in `<top (required)>'
  from /home/mbillard/.rvm/gems/ruby-1.9.3-p0@taskman/gems/railties-3.2.1/lib/rails/commands.rb:38:in `require'
  from /home/mbillard/.rvm/gems/ruby-1.9.3-p0@taskman/gems/railties-3.2.1/lib/rails/commands.rb:38:in `<top (required)>'
  from script/rails:6:in `require'
  from script/rails:6:in `<main>'

我在上面的命令中编译Readline时尝试使用rvm install 1.9.3 --with-readline-dir="$rvm_path/usr"并使用$rvm_path，但这些导致了此错误：

checking for tgetnum() in -lncurses... yes
checking for readline/readline.h... yes
checking for readline/history.h... yes
checking for readline() in -lreadline... no
checking for readline() in -ledit... no
checking for editline/readline.h... no

所以，感谢您提供的任何帮助。

Answer 1

请阅读以下内容的输出：

rvm requirements

它将显示您需要安装以充分利用Ruby的库列表

安装完所有库后，清理rvm安装的库并重新安装Ruby：

rm -rf $rvm_path/usr
rvm reinstall 1.9.3

Answer 2

您需要安装readline开发包。（这是我的答案与其他现有答案的不同之处）：

apt-get install libreadline-dev

执行此操作后，您可以重新安装Ruby（如已提及的@mpapis），一切都应该有效。

rvm reinstall 1.9.3

Answer 3

我有类似的问题。尝试

brew link readline --force

对我有用。

我从这里得到了解决方案：

Rails Console Not Loading

尝试启动rails控制台时，为什么会出现Readline错误？

3 个答案: