ruby 内存储器分配访问无效

ruby 内存分配访问无效
D:/Program Files/ruby/lib/ruby/gems/1.8/gems/mysql-2.7.3-mswin32/ext/mysql.so: 126: 内存分配访问无效。   - D:/Program Files/ruby/lib/ruby/gems/1.8/gems/mysql-2.7.3-mswin32/ext/mysql.so (LoadError)
        from D:/Program Files/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in `require'
        from F:/work/ruby/knockit/lib/main.rb:4


经网上查找，拷libmysql.dll到ruby的bin目录即可