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## JavaServer Faces 2.0 can not be installed解决方案 #### 问题描述:maven项目出现如下错误 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 按 Ctrl+C 复制代码 <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name>Archetype Created Web Application</display-name> </web-app> 按 Ctrl+C 复制代码 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 ===================== 此时,问题一般解决。如还不能解决,尝试在pom.xml中加入如下代码: 复制代码 1 <build> 2 <finalName>chm</finalName> 3 <plugins> 4 <plugin> 5 <artifactId>maven-compiler-plugin</artifactId> 6 <version>2.0.2</version> 7 <configuration> 8 <source>1.6</source> 9 <target>1.6</target> 10 </configuration> 11 </plugin> 12 </plugins> 13 </build>