求解决，急用啊大神们，Struts2配置文件首行错误

Question

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
第一行报错了。
错误提示：Referenced file contains errors (http://struts.apache.org/dtds/struts-2.3.dtd). For more information, right click
on the message in the Problems View and select "Show Details..."

Answer 1

引用文件出错哦 应该是文件放的位置的错误