activiti The content of element type "when" must match "(include|

報錯為一個xml配置。但是根本沒有這個when的配置。

我項目的xml也沒有900多行，最多200行。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.activiti.engine.ActivitiException: Error while building ibatis SqlSessionFactory: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 936; columnNumber: 24; 元素類型為 "when" 的内容必須比對 "(include|trim|where|set|foreach|choose|if)"。

在論壇上找到了 問題的答案  就是版本沖突了 。

論壇位址：http://ask.csdn.net/questions/654023