org.eclipse.wst.common.project.facet.core.xml
<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
? <runtime name="Apache Tomcat v7.0"/>
? <fixed facet="java"/>
? <fixed facet="wst.jsdt.web"/>
? <fixed facet="jst.web"/>
? <installed facet="java" version="1.6"/>
? <installed facet="jst.web" version="2.4"/>
? <installed facet="wst.jsdt.web" version="1.0"/>
</faceted-project>
?
更改jst.web?version值