从同事那里拷贝过来的web项目,导入到eclipse中,出现Java compiler level does not match the version of the installed Java project facet 问题.

如图所示：

其实要解决也很简单，在资源管理器下，找到项目所在的目录，在.settings子目录里面，用文本编辑器打开org.eclipse.wst.common.project.facet.core.xml配置文件，如图所示：

修改红色画线部分，让它与项目的编译器版本设置保持一致。

要查看项目的编译器版本设置，在Eclipse环境中，鼠标右键选择项目，点击Properties，选择Java Compiler，可以在窗口右边看到编译器版本，如图所示：

========================================补充================================================

如果此时仍然报错,就要看看Tomcat中的jre配置是否是本地安装的jre了.新建server,默认的是"Workbench default jre"

如何修改?

如下图:

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