我执行＆＃34; rails generate＆＃34;时遇到了一个错误。以下是我收到的错误消息。我正在使用Rails 4.0.4和ruby 2.0.0p451（2014-02-24）[x64-mingw32]
C：\ Users \ Phil \ Sites \ simple_cms＆gt; rails generate C：/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.15/lib/mysql2.rb:8:in
requir e': 126: The specified module could not be found. - C:/Ruby200-x64/lib/ruby/ge ms/2.0.0/extensions/x64-mingw32/2.0.0/mysql2-0.3.15/mysql2/mysql2.so (LoadError) from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.15/lib/mysql2.rb :8:in＆＃39; 来自C：/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundl 呃/ runtime.rb：76：在require' from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundl er/runtime.rb:76:in块（2级）中的require＆＃39; 来自C：/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundl er / runtime.rb：72：在each' from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundl er/runtime.rb:72:in块中的require＆＃39; 来自C：/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundl 呃/ runtime.rb：61：在each' from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundl er/runtime.rb:61:in中需要＆＃39; 来自C：/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundl 呃：132：在require' from C:/Users/Phil/Sites/simple_cms/config/application.rb:7:in＆＃39; 来自C：/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.4/lib/rails/co mmands.rb:43:inrequire' from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.4/lib/rails/co mmands.rb:43:in＆＃39; 来自bin / rails：4：require' from bin/rails:4:in＆＃39;
C：\ Users \ Phil \ Sites \ simple_cms＆gt; rails -v Rails 4.0.4
C：\ Users \ Phil \ Sites \ simple_cms＆gt; ruby -v ruby 2.0.0p451（2014-02-24）[x64-mingw32]