Where can I find tomcat deployment errors?

[RayN]

I'm trying to deploy an application, but for some reason I'm getting this error:

[2010-07-07 11:54:21.572] start-signalling-1 <DE0006E> Start failed for bundle 'HelloWorldJSF' version '0.0.0'. org.eclipse.virgo.kernel.deployer.core.DeploymentE xception: Web application failed to start
at org.eclipse.virgo.web.core.internal.WebBundleLifec ycleListener.onStarted(WebBundleLifecycleListener. java:129)
at org.eclipse.virgo.kernel.install.artifact.internal .ArtifactStateMonitor.onStarted(ArtifactStateMonit or.java:205)
at org.eclipse.virgo.kernel.install.artifact.internal .AbstractInstallArtifact.asyncStartSucceeded(Abstr actInstallArtifact.java:272)
at org.eclipse.virgo.kernel.install.artifact.internal .AbstractInstallArtifact.access$0(AbstractInstallA rtifact.java:269)
at org.eclipse.virgo.kernel.install.artifact.internal .AbstractInstallArtifact$StateMonitorSignal.signal SuccessfulCompletion(AbstractInstallArtifact.java: 222)
at org.eclipse.virgo.kernel.core.internal.BundleStart Tracker$1.run(BundleStartTracker.java:140)
at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.eclipse.gemini.web.core.WebApplicationStartFai ledException: org.eclipse.gemini.web.core.spi.ServletContainerEx ception: Web application at '/HelloWorldJSF' failed to start. Check the logs for more details.
at org.eclipse.gemini.web.internal.StandardWebApplica tion.start(StandardWebApplication.java:107)
at org.eclipse.virgo.web.core.internal.WebBundleLifec ycleListener.onStarted(WebBundleLifecycleListener. java:120)
... 8 common frames omitted
Caused by: org.eclipse.gemini.web.core.spi.ServletContainerEx ception: Web application at '/HelloWorldJSF' failed to start. Check the logs for more details.
at org.eclipse.gemini.web.tomcat.internal.TomcatServl etContainer.startWebApplication(TomcatServletConta iner.java:123)
at org.eclipse.gemini.web.internal.StandardWebApplica tion.start(StandardWebApplication.java:90)
... 9 common frames omitted

Can anyone tell me where can i see these "log for more details"??? I'm trying to change root level for "INFO" or "DEBUG", but my server always get locked and it doesn't start.