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

Question

当我在终端中运行“rails c”命令时，不知何故它不会启动 rails 控制台并抛出错误。我正在使用 rbenv 运行 rails 5.2.2。

rails c

它引发以下错误。

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

它在一周前有效，但现在无效。有任何想法吗？

Answer 1

我从一些研究中找到了 2 个解决方案。

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

libreadline.7.dylib 丢失，因此将 libreadline.8.0.dylib 链接到 libreadline.7.dylib 对我有用。

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 在开发组可以解决这个问题。

gem 'rb-readline'