问题解决：Target runtime Apache Tomcat v6.0 is not defined

Target runtime Apache Tomcat v6.0 is not defined.错误解决方法。

问题解决网址： http://jingyan.baidu.com/article/ce09321b479d102bfe858f66.html
更换     /.settings/org.eclipse.wst.common.project.facet.core.xml文件