Ruby on rails &引用；不推荐使用警告：类“可继承”属性已不推荐使用；执行rakedb:create时

当我跟踪时，我收到一条错误消息

yulong@ubuntu:~/mystore$ rake db:create
rake db:create
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    rake aborted!
    Fixtures is not a class
yulong@ubuntu:~/mystore$ rails g spree:site
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <top (required)> at /home/yulong/mystore/config/application.rb:7)
    [DEPRECATION WARNING] Nested I18n namespace lookup under "activerecord.attributes.checkout" is no longer supported
   create  lib/spree_site.rb
   remove  public/index.html
   append  public/robots.txt
   append  db/seeds.rb

yulong@ubuntu：~/mystore$rake数据库：创建
rake数据库：创建
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
雷克流产了！
这不是一门课
yulong@ubuntu：~/mystore$rails g spree:site
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
弃用警告：类\u可继承的\u属性已弃用，请改用类\u属性方法。请注意，它们的行为稍有不同，因此请首先参考class_属性文档。（从at/home/yulong/mystore/config/application.rb调用：7）
[弃用警告]不再支持“activerecord.attributes.checkout”下的嵌套I18n命名空间查找
创建lib/spree_site.rb
删除public/index.html
附加public/robots.txt
追加db/seeds.rb

请浏览以下链接，这将帮助您在rails 3.1中解决此问题

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您使用的是哪种版本的Rails和Spree？@rdvdijk Rails 3.1.0和Spree“0.60.1”我猜Spree与Rails 3.1还不兼容。（另请参见。）您能试用最新的Rails 3.0版本吗？