运行捆绑安装时出错
Installing mysql2 (0.3.11) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
...
Make sure that `gem install mysql2 -v '0.3.11'` succeeds before bundling.
当我运行确保gem install mysql2 -v '0.3.11'
。我仍然得到同样的错误。