deployment error

[vaishali dolas]

when i'm compiling my code in netbeans IDE its giving me error like
init:
deps-module-jar:
deps-ear-jar:
deps-jar:
library-inclusion-in-archive:
library-inclusion-in-manifest:
compile:
compile-jsps:
Deployment error:
Access to Tomcat server has not been authorized. Set the correct username and password with the "manager" role in the Tomcat customizer in the Server Manager.
See the server log for details.
at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:166)
at org.netbeans.modules.j2ee.ant.Deploy.execute(Deploy.java:104)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:623)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:277)
at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:460)
at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:151)
Caused by: java.lang.IllegalStateException: Access to Tomcat server has not been authorized. Set the correct username and password with the "manager" role in the Tomcat customizer in the Server Manager.
at org.netbeans.modules.tomcat5.TomcatManagerImpl.list(TomcatManagerImpl.java:389)
at org.netbeans.modules.tomcat5.TomcatManager.modules(TomcatManager.java:623)
at org.netbeans.modules.tomcat5.TomcatManager.getAvailableModules(TomcatManager.java:434)
at org.netbeans.modules.j2ee.deployment.impl.TargetServer.getAvailableTMIDsMap(TargetServer.java:331)
at org.netbeans.modules.j2ee.deployment.impl.TargetServer.processLastTargetModules(TargetServer.java:369)
at org.netbeans.modules.j2ee.deployment.impl.TargetServer.init(TargetServer.java:143)
at org.netbeans.modules.j2ee.deployment.impl.TargetServer.deploy(TargetServer.java:479)
at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:151)
... 16 more
Caused by: org.netbeans.modules.tomcat5.AuthorizationException
at org.netbeans.modules.tomcat5.TomcatManagerImpl.list(TomcatManagerImpl.java:390)
... 23 more
BUILD FAILED (total time: 0 seconds)