库未加载:libmysqlclient.16。在OS X 10.6上使用mysql2 gem运行'rails server'时出现dylib错误

我已经为此纠结了一段时间。

我已经在我的雪豹机器上安装了Rails 3, gem, mysql。一切都很顺利，直到我创建了我的第一个项目并试图运行

rails server

在运行这个我得到:

jontybrook$ rails server
/Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2/mysql2.bundle: dlopen(/Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.16.dylib (LoadError)
  Referenced from: /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2/mysql2.bundle
  Reason: image not found - /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2/mysql2.bundle
    from /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2.rb:7
    from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in `require'
    from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in `require'
    from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in `each'
    from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in `require'
    from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in `each'
    from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in `require'
    from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler.rb:112:in `require'
    from /Users/jontybrook/Dropbox/CODING/simple_cms/config/application.rb:7
    from /Library/Ruby/Gems/1.8/gems/railties-3.0.3/lib/rails/commands.rb:28:in `require'
    from /Library/Ruby/Gems/1.8/gems/railties-3.0.3/lib/rails/commands.rb:28
    from /Library/Ruby/Gems/1.8/gems/railties-3.0.3/lib/rails/commands.rb:27:in `tap'
    from /Library/Ruby/Gems/1.8/gems/railties-3.0.3/lib/rails/commands.rb:27
    from script/rails:6:in `require'
    from script/rails:6
jontybrook$

据我所知，问题是与mysql2宝石。MySQL似乎运行良好，我的Gemfile引用mysql2，我的数据库。Yml文件似乎也可以。

错误中提到

Reason: image not found - /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2/mysql2.bundle

然而,

jontybrook$ cd /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2
jontybrook$ ls
client.rb   em.rb       error.rb      mysql2.bundle result.rb

MySQL2。捆绑在那里!?

如果我使用旧的mysql gem, WEBrick启动正常。但这并不理想，不是吗?

谷歌能给我的我都试过了!任何帮助都非常感激。

当前回答

约蒂，我也很纠结。

我觉得这里有个线索

otool -L /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2/mysql2.bundle

/Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/lib/mysql2/mysql2.bundle:
    /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/libruby.1.dylib (compatibility version 1.8.0, current version 1.8.7)
    libmysqlclient.16.dylib (compatibility version 16.0.0, current version 16.0.0)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.2.1)

注意到到dylib的路径很短吗?

我试图找出gem安装说明离开dylib路径的位置，但它进展缓慢，因为我自己从未构建过gem。

如果我找到更多，我会发布更多!

2010-12-28 16:54:59

其他回答

我在使用Django时遇到了这个问题，我使用brew安装了很多开源程序，我需要做以下工作，因为我使用brew安装mysql:

sudo ln -s /usr/local/Cellar/mysql/5.5.20/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

请确保替换为您版本的库!

2012-04-16 05:04:32

刚刚遇到了这个问题。我所要做的就是卸载mysql2 gem并重新安装它。希望这对其他人也有用

2012-04-23 17:52:17

这通常发生在你升级mysql的时候。安装的mysql2 gem是建立在旧的mysql库上的，不能与新的库一起工作。只需要重新安装。

用gem卸载mysql2。然后用gem install mysql2安装它

2016-03-05 08:17:07

打开一个终端，运行如下命令:

export PATH=$PATH:/usr/local/mysql/bin

它应该会起作用。

2016-09-16 11:12:12

在OSX El Capitan更新时，你这样做:

sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

它抛出一个错误

ln: /usr/lib/libmysqlclient.18.dylib: Operation not permitted

因此，为了避免这种情况，您可以首先定位libmysqlclient.18。使用命令Dylib

User$ locate libmysqlclient.18.dylib

在我的例子中，它返回/usr/local/mysql-5.5.24-osx10.5-x86_64/lib/libmysqlclient.18.dylib

因此，我们将创建usr/local/lib/的符号链接，如下所示:

sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/local/lib/libmysqlclient.18.dylib

详情:https://forums.developer.apple.com/thread/7935

2015-10-30 05:28:55

库未加载:libmysqlclient.16。在OS X 10.6上使用mysql2 gem运行'rails server'时出现dylib错误

推荐文章

最新文章

标签