带有mysql2和rails3的RuntimeError(捆绑软件) [英] RuntimeError with mysql2 and rails3 (bundler)

问题描述

我收到此错误

`establish_connection': Please install the mysql2 adapter: `gem install activerecord-mysql2-adapter` (no such file to load -- active_record/connection_adapters/mysql2_adapter) (RuntimeError)
  from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/activerecord-

此处是整个错误以及我的配置和gemfile的转储.

Here is dump of whole error and my config and gemfile.

推荐答案

从Ubuntu 11.10升级到12.04后，我遇到了相同的错误.这是我解决问题的方法:

I had the same error after upgrading from Ubuntu 11.10 to 12.04. This is how I fixed the problem:

gem uninstall mysql2
bundle

我认为这里的关键是本机扩展"-我想当我最后安装时，我正在使用不同版本的mysql.

I think the key here is the 'native extensions' -- I suppose when I installed last, I was using a different version of mysql.

Installing mysql2 (0.3.11) with native extensions

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