将 grails 2.1.1 战争部署到 tomcat7 时，出现以下错误：
Configuring Spring Security Core ...
... finished configuring Spring Security Core
Nov 19, 2012 9:17:08 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Nov 19, 2012 9:17:08 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/myapp] startup failed due to previous errors
Nov 19, 2012 9:18:28 AM org.apache.catalina.startup.HostConfig deleteRedeployResources
INFO: Undeploying context [/myapp]
可能是什么问题？