导入项目xml文件提示：Referenced file contains errors

1、从git上导入项目后，xml文件提示：

Referenced file contains errors (http://www.springframework.org/schema/beans/spring-beans-3.1.xsd) 

解决方案：Window--Validation--XML将Honour  all XML schema locations前面的对勾去掉

 2、Build path is incomplete. Cannot find class file for javax/servlet/http/HttpServletRequest