Rails 服务器错误 - Rails 4

Question

我正试图回来在 Rail4 上创建另一个应用程序，当我尝试启动该应用程序时，发生了以下情况：

    prompt$ rails server
    /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/mysql2-0.4.5/lib/mysql2.rb:31:in `require': dlopen(/Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/mysql2-0.4.5/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError)
    Referenced from: /Users/edwincaro/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/mysql2-0.4.5/lib/mysql2/mysql2.bundle
   Reason: image not found - /Users/edwincaro/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/mysql2-0.4.5/lib/mysql2/mysql2.bundle
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/mysql2-0.4.5/lib/mysql2.rb:31:in `<top (required)>'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:76:in `require'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:72:in `each'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:72:in `block in require'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:61:in `each'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:61:in `require'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.6.2/lib/bundler.rb:132:in `require'
   from /Users/ec/Sites/ticketsys/config/application.rb:7:in `<top (required)>'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
   from /Users/ec/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
   from bin/rails:4:in `require'
   from bin/rails:4:in `<main>'
   prompt$

我阅读了之前在此处发布的所有 'Rails Server Error' 并尝试了此处提供的大部分解决方案，但其中 none 对我有用。

我想也许是我缺少的文件 dlopen。

如有任何帮助，我将不胜感激

Answer 1

您需要重新安装 mysql 库。那么：

gem uninstall mysql2

bundle install

根据新的 mysql 库重建 gem

Rails 服务器错误 - Rails 4

Rails Server Error - Rails 4

ruby-on-rails

ruby-on-rails-4

rbenv

rbenv-gemset