rails 5、rbenv - rails 控制台未启动 - 库未加载：/usr/local/opt/readline/lib/libreadline.7.dylib (LoadError)

Question

当我在终端中执行运行 "rails c" 命令时，它无法启动 rails 控制台并抛出错误。我正在使用 rbenv 运行ning rails 5.2.2。

rails c

它抛出以下错误。

Running via Spring preloader in process 13912
Traceback (most recent call last):
    50: from -e:1:in `<main>'
    49: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    48: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    47: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.2/lib/active_support/dependencies.rb:285:in `load'
    ...
     7: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.2/lib/active_support/dependencies.rb:291:in `require'
     6: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.2/lib/active_support/dependencies.rb:257:in `load_dependency'
     5: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.2/lib/active_support/dependencies.rb:291:in `block in require'
     4: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
     3: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
     2: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
     1: from /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
/Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require': dlopen(/Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/2.5.0/x86_64-darwin17/readline.bundle, 9): Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib (LoadError)
  Referenced from: /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/2.5.0/x86_64-darwin17/readline.bundle
  Reason: image not found - /Users/wemteq/.rbenv/versions/2.5.0/lib/ruby/2.5.0/x86_64-darwin17/readline.bundle

一周前还可以，现在不行了。有什么想法吗？

Answer 1

我通过一些研究找到了 2 个解决方案。

Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib (LoadError)

libreadline.7.dylib 丢失，所以链接 libreadline.8.0.dylib 到 libreadline。7.dylib 为我工作。

ln -s /usr/local/opt/readline/lib/libreadline.8.0.dylib /usr/local/opt/readline/lib/libreadline.7.dylib

libreadline version might be different. You can browse available files in /usr/local/opt/readline/lib/ directory.

rb-readline gem 在开发组会解决这个问题。

gem 'rb-readline'

rails 5、rbenv - rails 控制台未启动 - 库未加载：/usr/local/opt/readline/lib/libreadline.7.dylib (LoadError)

rails 5, rbenv - rails console doesn't start - Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib (LoadError)

console

ruby-on-rails

rbenv