在linux下输入rails console,之后提示错误,如下:
/usr/local/ruby/lib/ruby/1.9.1/irb/completion.rb:9:in `require': cannot load such file -- readline (LoadError)
from /usr/local/ruby/lib/ruby/1.9.1/irb/completion.rb:9:in `
from /usr/local/ruby/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands/console.rb:3:in `require'
from /usr/local/ruby/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands/console.rb:3:in `
from /usr/local/ruby/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:37:in `require'
from /usr/local/ruby/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:37:in `
from script/rails:6:in `require'
from script/rails:6:in `
需要先安装readline,命令如下:
apt-get install libreadline5-dev
再进入到ruby源码中,重新编译readline,命令如下:
cd ext/readline ruby extconf.rb make sudo make install
即可。