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.GeneratedMethodAccessor63.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        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.checkUndeployForSharedReferences(TargetServer.java:287)
        at org.netbeans.modules.j2ee.deployment.impl.TargetServer.checkUndeployForSharedReferences(TargetServer.java:236)
        at org.netbeans.modules.j2ee.deployment.impl.TargetServer.checkUndeployForSharedReferences(TargetServer.java:233)
        at org.netbeans.modules.j2ee.deployment.impl.TargetServer.processLastTargetModules(TargetServer.java:355)
        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)
        ... 26 more
BUILD FAILED (total time: 17 seconds)


This is the error and i've gone to the manager role to change the user name and the password to no avail.

Please, what do i need to do.

Thanks.