mysql - 需要 Ruby Gem LoadError mysql2/mysql2

Question

我正在尝试在 OSX 10.8 上设置我的 Rails 服务器，但我无法让我的 Rails 服务器运行。
- 目前我正在使用带有 mysql 5.1 的 Zend Server。
- 我还安装了brew 和brew mysql。
- 我使用了:
gem install mysql2 -- --srcdir=/usr/local/mysql/include --with-opt-include=/usr/local/mysql/include
服务器已经工作了，但现在，我总是在下面得到这个 loadError。

我的 Gemfile 是这样写的:

ralphs-macbook-pro:admin-mockup zero$ bundle install
Using rake (10.0.2) 
Using i18n (0.6.1) 
Using multi_json (1.3.7) 
Using activesupport (3.2.7) 
Using builder (3.0.4) 
Using activemodel (3.2.7) 
Using erubis (2.7.0) 
Using journey (1.0.4) 
Using rack (1.4.1) 
Using rack-cache (1.2) 
Using rack-test (0.6.2) 
Using hike (1.2.1) 
Using tilt (1.3.3) 
Using sprockets (2.1.3) 
Using actionpack (3.2.7) 
Using mime-types (1.19) 
Using polyglot (0.3.3) 
Using treetop (1.4.12) 
Using mail (2.4.4) 
Using actionmailer (3.2.7) 
Using arel (3.0.2) 
Using tzinfo (0.3.35) 
Using activerecord (3.2.7) 
Using activeresource (3.2.7) 
Using annotate (2.5.0) 
Using coffee-script-source (1.4.0) 
Using execjs (1.4.0) 
Using coffee-script (2.2.0) 
Using rack-ssl (1.3.2) 
Using json (1.7.5) 
Using rdoc (3.12) 
Using thor (0.16.0) 
Using railties (3.2.7) 
Using coffee-rails (3.2.2) 
Using columnize (0.3.6) 
Using debugger-ruby_core_source (1.1.5) 
Using debugger-linecache (1.1.2) 
Using debugger (1.2.2) 
Using formtastic (2.2.1) 
Using haml (3.1.7) 
Using haml-rails (0.3.5) 
Using hirb (0.7.0) 
Using hpricot (0.8.6) 
Using jquery-rails (2.1.4) 
Using kgio (2.7.4) 
Using mysql2 (0.3.11) 
Using php_serialize (1.2) 
Using polyamorous (0.5.0) 
Using rabl (0.7.8) 
Using railroady (1.1.0) 
Using bundler (1.2.3) 
Using rails (3.2.7) 
Using raindrops (0.10.0) 
Using randumb (0.3.0) 
Using sass (3.2.3) 
Using sass-rails (3.2.5) 
Using squeel (1.0.13) 
Using uglifier (1.3.0) 
Using unicorn (4.4.0) 
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled
gem is installed.

然后启动 rails s

/Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/mysql2-0.3.11/lib/mysql2.rb:9:in `require': cannot load such file -- mysql2/mysql2 (LoadError)
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/mysql2-0.3.11/lib/mysql2.rb:9:in `<top (required)>'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `require'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `each'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `block in require'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `each'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `require'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/bundler-1.2.3/lib/bundler.rb:128:in `require'
from /Users/zero/GitHub/admin-mockup/config/application.rb:7:in `<top (required)>'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.7/lib/rails/commands.rb:53:in `require'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.7/lib/rails/commands.rb:53:in `block in <top (required)>'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.7/lib/rails/commands.rb:50:in `tap'
from /Users/zero/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.7/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

感谢您的帮助!

Answer 1

检查此解决方案:

• http://railsforum.com/viewtopic.php?id=50501
• rake db:migrate giving error for mysql2