eclipse-jee-kepler Cannot create a server using the selected type ,could not load the tomcat server

今天换了eclipse EE kepler ,重新配置Server的时候,报了这个错could not load the tomcat server configuration,于是删除server重新配的时候,选tomcat7竟然是灰色的,网上搜罗了一下,发现是tomcat配置文件有问题,我也懒得看了,重新解压一个tomcat,重新配置后,再到workspace下的.metadata/.plugins/org.eclipse.core.runtime/.setting/下删除下面2个文件:

1.org.eclipse.jst.server.tomcat.core.prefs

2.org.eclipse.wst.server.core.prefs

重启,ok.