[eGovFrame] Cannot change version of project facet Dynamic Web Module to 2.5.

org.eclipse.wst.common.project.facet.core.xml

<?xml version="1.0" encoding="UTF-8"?>

<faceted-project>

  <fixed facet="wst.jsdt.web"/>

  <installed facet="java" version="1.7"/>

  <installed facet="wst.jsdt.web" version="1.0"/>

  <installed facet="jst.web" version="2.5"/>

  <installed facet="jst.jsf" version="2.2"/>

</faceted-project>

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\WEB-INF\web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns="http://java.sun.com/xml/ns/javaee"

xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">