Unresolved WebApp library references defined in weblogic.xml

I am using 10.3 version of weblogic. I am trying to precompile jsps inside WAR file using weblogic.appc command through Maven2.2.1 script. I get the following error.
I am using weblogic-maven-plugin.

weblogic.utils.compiler.ToolFailureException: Unresolved WebApp library references defined in weblogic.xml, of module 'e
mphsys-5.2.war' [Extension-Name: jstl, Specification-Version: 1.2, exact-match: false]
at weblogic.ant.taskdefs.j2ee.CompilerTask.invokeMain(CompilerTask.java:310)
at weblogic.ant.taskdefs.j2ee.Appc.privateExecute(Appc.java:261)
at weblogic.ant.taskdefs.j2ee.Appc.execute(Appc.java:164)
at org.codehaus.mojo.weblogic.AppcMojo.execute(AppcMojo.java:165)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:55
6)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.jav
a:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: weblogic.utils.compiler.ToolFailureException: Unresolved WebApp library references defined in weblogic.xml, o
f module 'emphsys-5.2.war' [Extension-Name: jstl, Specification-Version: 1.2, exact-match: false]
at weblogic.application.compiler.WARModule.initWebAppLibraryManager(WARModule.java:353)
at weblogic.application.compiler.WARModule.processLibraries(WARModule.java:366)
at weblogic.application.compiler.WARModule.compile(WARModule.java:234)
at weblogic.application.compiler.flow.SingleModuleCompileFlow.proecessModule(SingleModuleCompileFlow.java:16)
at weblogic.application.compiler.flow.SingleModuleFlow.compile(SingleModuleFlow.java:32)
at weblogic.application.compiler.FlowDriver$FlowStateChange.next(FlowDriver.java:69)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.compiler.FlowDriver.nextState(FlowDriver.java:36)
at weblogic.application.compiler.FlowDriver.run(FlowDriver.java:26)
at weblogic.application.compiler.WARCompiler.compile(WARCompiler.java:29)
at weblogic.application.compiler.flow.AppCompilerFlow.compileInput(AppCompilerFlow.java:118)
at weblogic.application.compiler.flow.AppCompilerFlow.compile(AppCompilerFlow.java:43)
at weblogic.application.compiler.FlowDriver$FlowStateChange.next(FlowDriver.java:69)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.compiler.FlowDriver.nextState(FlowDriver.java:36)
at weblogic.application.compiler.FlowDriver.run(FlowDriver.java:26)
at weblogic.application.compiler.Appc.runBody(Appc.java:181)
at weblogic.utils.compiler.Tool.run(Tool.java:158)
at weblogic.utils.compiler.Tool.run(Tool.java:115)
at weblogic.application.compiler.Appc.main(Appc.java:192)
at weblogic.appc.main(appc.java:14)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at weblogic.ant.taskdefs.j2ee.CompilerTask.invokeMain(CompilerTask.java:301)
... 22 more

Any help or advice, I am stuck at this point.