由于readline错误,无法执行"rails console"

Question

rails console由于此错误,我无法执行:

localhost:TwitterForZombies wiz$ rails c
/Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/irb/completion.rb:9:in `require': dlopen(/Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/x86_64-darwin12.2.1/readline.bundle, 9): Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib (LoadError)
  Referenced from: /Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/x86_64-darwin12.2.1/readline.bundle
  Reason: image not found - /Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/x86_64-darwin12.2.1/readline.bundle
    from /Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/irb/completion.rb:9:in `<top (required)>'
    from /Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands/console.rb:3:in `require'
    from /Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands/console.rb:3:in `<top (required)>'
    from /Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:38:in `require'
    from /Users/wiz/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:38:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我通过自制软件安装了readline.我想继续使用rbenv而不是rvm.

感谢您阅读我的问题.

Answer 1

我最近遇到了与homebrew和libreadline.7.x.dylib/libreadline.6.x.dylib相同的问题

我通过运行解决了它:

ln -s /usr/local/opt/readline/lib/libreadline.7.0.dylib /usr/local/opt/readline/lib/libreadline.6.dylib

来源:https://github.com/rails/rails/issues/26658

Answer 2

Homebrew很棒,但偶尔也不会和其他一些活动部分一起玩得很好.

A 自动移除时brew update && brew upgrade引入,红宝石依然依赖.libreadline.7.x.dyliblibreadline.6.x.dylib

可能有更聪明的方法来解决这个问题,但蛮力对我有用:

$ rbenv uninstall 2.3.1
$ rbenv install 2.3.1
$ cd /path/to/my/app
$ bundle

以上假定存在rbenv ruby-build,当然,bundler; 替换2.3.1为您正在使用的任何版本的红宝石.

请注意,不同的自制程序管理库可能会出现类似的问题(例如,请参阅我自己的答案)

Answer 3

我在OSX上,ruby2.3.​​0,rails5.添加gem 'rb-readline'到我Gemfile修复此问题.

Answer 4

我在Ruby 2.1.0和rails 4.0中遇到了同样的错误.搜索并尝试了很多,最后它运作良好:)这是我做的:

rvm cleanup all
rvm autolibs enable
rvm install 2.1.0 

其他方式:

brew update
brew uninstall readline
brew install readline

autolibs命令将强制RVM安装所有依赖项,因此您无需担心它.

希望它有用.

Answer 5

正如Sachin暗示的那样,安装readline然后重新安装ruby是理想的方法 - 但rbenv的细节有点不同.鉴于你的文件路径,我猜你是在Mac上,所以以下内容应该有所帮助:

brew install readline ruby-build
env CONFIGURE_OPTS=--with-readline-dir=`brew --prefix readline` rbenv install 1.9.3-p286

这是从ruby-build Wiki和快速谷歌搜索中获取的.

Answer 6

使用mac,El Captainversion,可以通过执行来修复

rvm reinstall your_ruby_version

(像rvm reinstall ruby-2.3.1)

希望这有帮助,祝你好运!

Answer 7

尝试安装 readline，然后重新安装你的 ruby

https://rvm.io/packages/readline/