背景：
The errors below were detected when validating the file "mybatis-3-mapper.dtd" via the file "account-mapper.xml". In most cases these errors can be detected by validating "mybatis-3-mapper.dtd" directly. However it is possible that errors will only occur when mybatis-3-mapper.dtd is validated in the context of account-mapper.xml.将<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >改为<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://www.mybatis.org/dtd/mybatis-3-mapper.dtd" >mybatis3的mapper文件报Referenced file contains errors
原文：http://www.cnblogs.com/fzdyd/p/4178944.html