我正在尝试使用我的WAMP MySQL在我的Windows 7系统上安装Ruby on Rails。当我尝试启动rails WEBrick服务器时，我收到错误（见下文）。
我已经成功安装了完整的Ruby on Rails环境，包括mysql2 gem。在安装mysql2 gem时，我引用了lib的位置并包含了WAMP mysql的文件夹并且已成功安装：
C:\wamp\www\simple_cms>gem install mysql2 --no-document -- '--with-mysql-lib="C:\wamp\bin\mysql\mysql5.5.24\lib\" --with-mysql-include="C:\wamp\bin\mysql\mysql5.5.24\include\"
======================================================================================================
\ You've installed the binary version of mysql2.
It was built using MySQL Connector/C version 6.1.5.
It's recommended to use the exact same version to avoid potential issues.
At the time of building this gem, the necessary DLL files were retrieved from:
http://cdn.mysql.com/Downloads/Connector-C/mysql-connector-c-6.1.5-winx64.zip
\ This gem *includes* vendor/libmysql.dll with redistribution notice in vendor/README.
======================================================================================================
Successfully installed mysql2-0.3.18-x64-mingw32
1 gem installed
我将libmysql.dll从“C：\ wamp \ bin \ mysql \ mysql5.5.24 \ lib \ libmysql.dll”复制到“C：\ Ruby22-x64 \ bin \ libmysql.dll”。
当我尝试启动WEBrick时出现以下错误
C:\wamp\www\simple_cms>rails server
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/mysql2-0.3.18-x64-mingw32/lib/mysql2/mysql2.rb:2:in `require': cannot load such file -- mysql2/2.2/mysql2 (LoadError)
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/mysql2-0.3.18-x64-mingw32/lib/mysql2/mysql2.rb:2:in `<top (required)>'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/mysql2-0.3.18-x64-mingw32/lib/mysql2.rb:31:in `require'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/mysql2-0.3.18-x64-mingw32/lib/mysql2.rb:31:in `<top (required)>'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.4/lib/bundler/runtime.rb:76:in `require'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.4/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.4/lib/bundler/runtime.rb:72:in `each'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.4/lib/bundler/runtime.rb:72:in `block in require'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.4/lib/bundler/runtime.rb:61:in `each'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.4/lib/bundler/runtime.rb:61:in `require'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.4/lib/bundler.rb:134:in `require'
from C:/wamp/www/simple_cms/config/application.rb:7:in `<top (required)>'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:78:in `require'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:78:in `block in server'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `tap'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `server'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.2/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
我也尝试使用mysql2 gem附带的libmysql.dll，位于“C：\ Ruby22-x64 \ lib \ ruby \ gems \ 2.2.0 \ gems \ mysql2-0.3.18-x64-mingw32 \ vendor” \ libmysql.dll“并将其复制到”C：\ Ruby22-x64 \ bin \ libmysql.dll“。这也给出了上述错误。
我可以从命令行访问mysql：
C:\wamp\www\simple_cms>mysql --version
mysql Ver 14.14 Distrib 5.5.24, for Win64 (x86)
我不确定我在这里做错了什么。任何帮助将不胜感激。