同样的web项目myeclipse2015无法启动

用的是tomcat,有些web项目是可以在myeclipse2015跑的,可是这个项目在myeclipse10下可以正常跑在myeclipse2015下却报错.部署的时候正常,启动tomcat后报:
Could not publish to the server.
There were issues during deployment to server Tomcat v6.0 Server at localhost. See Error Log for details.
Deployment failed
Child module deployment failed
但是单独用tomcat跑却是可以的