tomcat突然报错，The Tomcat server configuration at \Servers\Tomcat v7.0 Server at localhost-config is missing. Check the server for errors.

具体报错原因不太清楚，不过肯定是因为一些关联的信息缺失导致

解决办法：

删掉原先关联的tomcat，重新关联一个新的

prefencen--》service--》runtime environments,删除原先所有的tomcat关联，然后重新关联新的tomcat,重启eclipse就可以了

The Tomcat server configuration at \Servers\Tomcat v7.0 Server at localhost-config is missing. Check the server for errors.