Could not publish to the server. Tomcat 7.0

I am getting below error when trying to deploy war file on Tomcat 7.0.28 server. My Eclipse is Eclipse Java EE IDE for Web Developers.Version: Indigo Service Release 2 Build id: 20120216-1857. I would appreicate if anyone can provide a solution/fix? Is it related to version of eclipse or tomcat compatability? Thanks. ``` java.lang.NullPointerException at java.io.FileInputStream.<init>(Unknown Source) at org.eclipse.wst.server.core.util.PublishHelper.copyFile(PublishHelper.java:501) at org.eclipse.wst.server.core.util.PublishHelper.publishDelta(PublishHelper.java:435) at org.eclipse.wst.server.core.util.PublishHelper.publishDelta(PublishHelper.java:459) at org.eclipse.wst.server.core.util.PublishHelper.publishDelta(PublishHelper.java:459) at org.eclipse.jst.server.tomcat.core.internal.PublishOperation2.publishDir(PublishOperation2.java:141) at org.eclipse.jst.server.tomcat.core.internal.PublishOperation2.execute(PublishOperation2.java:82) at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.performTasks(ServerBehaviourDelegate.java:1290) at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publish(ServerBehaviourDelegate.java:933) at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publish(ServerBehaviourDelegate.java:774) at org.eclipse.wst.server.core.internal.Server.publishImpl(Server.java:3087) at org.eclipse.wst.server.core.internal.Server$PublishJob.run(Server.java:345) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) eclipse.buildId=M20120208-0800 java.version=1.6.0_32 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product ```