我是Ruby on Rails的新手，我按源安装ruby。
Ruby版本是2.3.0，rails版本是Rails 4.2.5。
我无法运行rails c或rails console。
它给我以下错误：
Running via Spring preloader in process 4267
/usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require': cannot load such file -- readline (LoadError)
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
from /usr/local/lib/ruby/2.3.0/irb/completion.rb:10:in `<top (required)>'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/commands/console.rb:3:in `<top (required)>'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:123:in `require_command!'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:58:in `console'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
from /home/james/Desktop/myapp/bin/rails:9:in `<top (required)>'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `load'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `block in load'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `load'
from /usr/local/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'
修改
我在@Vasfed链接中尝试第二个解决方案，它给了我以下错误：
make: *** No rule to make target `/internal.h', needed by `readline.o'. Stop.
答案 0 :(得分：12)
您的应用程序需要使用Readline gem，但未在Gemfile中指定
请将此添加到您的gem文件
month同时重新安装
v2答案 1 :(得分：1)
如果从源代码安装，请首先安装libredline-dev，然后转到ruby-2.3.0 / ext / readline（或源代码所在的位置）/ ext / readline。
ruby extconf.rb
make
make install
如果收到错误，请在运行extconf.rb后编辑Makefile，并在top_srcdir = ../..之后添加archdir = $(rubyarchdir)。
然后，再次运行make && make install。
答案 2 :(得分：0)
您需要一些额外的依赖
/path/to/phantomjs --cookies-file=/path/to/cookies.txt /path/to/script.js
安装依赖项后，请在ruby源代码文件夹中执行此操作：
sudo apt-get install build-essential libssl-dev curl libcurl3 libreadline-dev libcurl4-openssl-dev libffi-dev libgdbm3 libgdbm-dev
答案 3 :(得分：0)
安装gem rb-readline是一种解决方法。
相反，您不应该要求使用ext / readline安装ruby。
为此你需要ncurses devel和readline devel库
在CentOS中
yum install readline readline-devel ncurses ncurses-devel
哦，在安装库之后，你应该重新编译你的ruby。