DescriptionResourcePathLocationType Cannot change version of project facet Dynamic Web Module to

eclipse里找到先.setting文件夹下的 org.eclipse.wst.common.project.facet.core.xml文件

<?xml version="1.0" encoding="UTF-8"?><faceted-project>  <fixed facet="wst.jsdt.web"/>  <installed facet="jst.web" version="2.3"/>  <installed facet="wst.jsdt.web" version="1.0"/>  <installed facet="java" version="1.8"/></faceted-project>

修改<installed facet="jst.web" version="2.3"/> 为

 <installed facet="jst.web" version="3.0"/>

然后右键工程maven—>Update Project就可以了。