libmysqlclient_r.so.15：无法打开共享对象文件：没有这样的文件或目录 Dreamhost答案

【问题标题】：libmysqlclient_r.so.15: cannot open shared object file: No such file or directory Dreamhostlibmysqlclient_r.so.15：无法打开共享对象文件：没有这样的文件或目录 Dreamhost
【发布时间】：2013-01-24 14:57:15
【问题描述】：

我的 rails 应用程序运行良好，但最近 Dreamhost 移出了他们的服务器（*类似的东西），现在我无法通过 capistrano 进行部署..

我收到此错误消息：

libmysqlclient_r.so.15: cannot open shared object file: No such file or directory - /home/soprojetos/cap/shared/bundle/ruby/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.so

原始版本：

[direct.soprojetos.com.br] executing command ** [out :: direct.soprojetos.com.br] /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler.rb:199: warning: Insecure world writable dir /home/soprojetos/cap/shared/bundle/ruby/1.8/bin in PATH, mode 040777 ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/shared/bundle/ruby/1.8/bundler/gems/capistrano-ea5b03b4d38e/capistrano.gemspec:15: warning: Insecure world writable dir /home/soprojetos/cap/shared/bundle/ruby/1.8/bin in PATH, mode 040777 ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/shared/bundle/ruby/1.8/bundler/gems/kendoui_rails-dc276aceb446/kendoui-rails.gemspec:18: warning: Insecure world writable dir /home/soprojetos/cap/shared/bundle/ruby/1.8/bin in PATH, mode 040777 ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/shared/bundle/ruby/1.8/bundler/gems/pagseguro-fa2c22e88177/pagseguro.gemspec:15: warning: Insecure world writable dir /home/soprojetos/cap/shared/bundle/ruby/1.8/bin in PATH, mode 040777 ** [out :: direct.soprojetos.com.br] /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:132: warning: Insecure world writable dir /home/soprojetos/cap/shared/bundle/ruby/1.8/bin in PATH, mode 040777 ** [out :: direct.soprojetos.com.br] rake aborted! ** [out :: direct.soprojetos.com.br] libmysqlclient_r.so.15: cannot open shared object file: No such file or directory - /home/soprojetos/cap/shared/bundle/ruby/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.so ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/shared/bundle/ruby/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.so ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/shared/bundle/ruby/1.8/gems/mysql2-0.3.11/lib/mysql2.rb:9 ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/releases/20130208183759/config/application.rb:14 ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/releases/20130208183759/Rakefile:5:inrequire' ** [out :: direct.soprojetos.com.br] /home/soprojetos/cap/releases/20130208183759/Rakefile:5 ** [out :: direct.soprojetos.com.br]（通过使用 --trace 运行任务查看完整跟踪）命令在 9957 毫秒内完成 * [deploy:update_code] 回滚 * 执行“rm -rf /home/soprojetos/cap/releases/20130208183759; true” 服务器：[“direct.soprojetos.com.br”] [direct.soprojetos.com.br] 执行命令命令在 13266 毫秒内完成 * [pushover:notify_deploy_started] 回滚失败：“env PATH=$PATH:/usr/lib/ruby/gems/1.8/bin/sh -c 'cd -- /home/soprojetos/cap/releases/20130208183759 && bundle exec rake RAILS_ENV=production RAILS_GROUPS=assets assets :precompile && cp -- /home/soprojetos/cap/shared/assets/manifest.yml /home/soprojetos/cap/releases/20130208183759/assets_manifest.yml'" on direct.soprojetos.com.br `

谁能救我？

【问题讨论】：

这只是 Dreamhost 不是托管 Rails 应用程序的最佳位置的原因之一。如果可能，您应该尝试Heroku，因为他们的免费套餐与付费 Dreamhost 帐户提供的服务相当。
我在 Dreamhost 上的 Django 中遇到了同样的问题 ...

标签： mysql ruby-on-rails capistrano dreamhost

【解决方案1】：

我猜有一个操作系统升级，在某些时候与 mysql 相关的东西要么被删除要么没有升级。

这在 Ubuntu 16.04.4 上对我有用：

gem uninstall mysql2
sudo apt-get install libmysqlclient-dev
gem install mysql2

您可能需要重新启动 apache 或任何出现错误的服务。

请注意，如果你这样做了

gem uninstall mysql2
gem install mysql2

您的系统应该告诉您需要安装什么才能安装 mysql2 gem，在我的例子中是上面的 apt-get 命令。

【讨论】：

【解决方案2】：

尝试换成 mysql2 gem https://rubygems.org/gems/mysql2

【讨论】：