org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'contactTime' in 'class com.crm.lessn.entity.Customer_Submodule'

 xml文件和实体类没对应上