JavaServer Faces 2.0 requires Dynamic Web Module 2.5 or newer..

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JavaServer Faces 2.0 requires Dynamic Web Module 2.5 or newer..Maven Java EE Configuration Problem

JavaServer Faces 2.0 can not be installed : One or more constraints have not been satisfied..line 1 Maven Java EE Configuration Problem

解决方案：

首先，将webapp下的web.xml文件

1<? xml version="1.0" encoding="UTF-8" ?>2 <!-- <!DOCTYPE web-app 3 PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

4 "http://java.sun.com/dtd/web-app_2_3.dtd">

替换为

1 <web-app xmlns="http://java.sun.com/xml/ns/javaee"2 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

3 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 4 http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"

5 version="3.0">

6 <display-name>Archetype Created Web Application</display-name>

7</web-app>

然后，关闭Eclipse，改项目下的.settings\org.eclipse.wst.common.project.facet.core.xml，将版本改成为3.0,

将成后是<installed facet="jst.web" version="3.0"/>，再启动Eclipse. 最后，在Problems View的出错提示右键选Quick Fix，

再按提示确定就OK；或者,右键项目->Maven->Update Project

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