我配置一个rails simple_app运行此命令
rails new simple_app -d mysql
现在，当我尝试启动rails服务器时，我得到了
515 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/atom_feed_helper.rb
516 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/cache_helper.rb
517 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/controller_helper.rb
518 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/csrf_helper.rb
519 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/date_helper.rb
520 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/debug_helper.rb
521 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/javascript_helper.rb
522 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/activesupport-4.0.2/lib/active_support/core_ext/array/access.rb
523 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/url_helper.rb
524 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/activesupport-4.0.2/lib/active_support/core_ext/string/filters.rb
525 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/sanitize_helper.rb
526 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/text_helper.rb
527 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/form_tag_helper.rb
528 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/tags.rb
529 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/model_naming.rb
530 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/form_helper.rb
531 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/form_options_helper.rb
532 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/activesupport-4.0.2/lib/active_support/number_helper.rb
533 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/number_helper.rb
534 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/output_safety_helper.rb
535 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/activesupport-4.0.2/lib/active_support/core_ext/module/qualified_const.rb
536 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/activesupport-4.0.2/lib/active_support/core_ext/module.rb
537 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/record_identifier.rb
538 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/record_tag_helper.rb
539 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/rendering_helper.rb
540 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers/translation_helper.rb
541 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.2/lib/action_view/helpers.rb
542 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sprockets-rails-2.0.1/lib/sprockets/rails/helper.rb
543 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.2/lib/rails/engine/configuration.rb
544 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.2/lib/rails/application/configuration.rb
545 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sprockets-rails-2.0.1/lib/sprockets/railtie.rb
546 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.2/lib/rails/all.rb
547 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/activesupport-4.0.2/lib/active_support/string_inquirer.rb
548 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.15/lib/mysql2/version.rb
549 C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.15/lib/mysql2/error.rb
我多次删除了这个并试图再次这样做。
这似乎解决了分段错误问题
MySQL Connector / C 64位中包含的libmysql.lib与mingw64-gcc编译器不兼容。
您需要生成与mingw64兼容的libmysql.lib文件。
要生成libmysql.lib文件，需要gendef.exe，它可以从mingw-w64发行版中获取
在mysql连接器的lib文件夹中，使用以下步骤生成libmysql.lib。
gendef.exe libmysql.dll
dlltool -v --dllname libmysql.dll --def libmysql.def --output-lib libmysql.lib
gendef.exe运行gem命令后：gem install mysql2 --no-rdoc --no-ri - ' - with-mysql-lib =“C：\ Program Files \ MySQL \ MySQL Server 5.6 \ lib” --with-mysql-include =“C：\ Program Files \ MySQL \ MySQL Server 5.6 \ include”'
它不适用于Windows上的命令[--with-opt-dir]（我在Windows 7上这样做了）
使用最新的MySQL版本