Cannot change version of project

Error Message

Description Resource    Path    Location    Type
Cannot change version of project facet Dynamic Web Module to 2.5.   SpringMVC03     line 1  Maven Java EE Configuration Problem

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当前的 web.xml 配置 为2.5

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打开文件目录 .settings 文件夹 -

打开org.eclipse.wst.common.project.facet.core.xml，做如下修改

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Maven Update 一下

Done

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Reference Link

解决Cannot change version of project facet Dynamic web module to 2.5