I am trying to deploy the seam 'booking' example on weblogic 10 MP1 by referring to the tutorial. But, getting the below exception on weblogic console.:

<Jun 10, 2009 2:55:14 PM IST> <Error> <Deployer> <BEA-149265> <Failure occurred in the execution of deployment request with ID '1244625908796' for tas
k 'weblogic.deploy.configChangeTask.0'. Error is: 'java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log;'
java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log;
        at java.lang.Class.getDeclaredFields0(Native Method)
        at java.lang.Class.privateGetDeclaredFields(Class.java:2259)
        at java.lang.Class.getDeclaredFields(Class.java:1715)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:867)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:884)
        Truncated. see log file for complete stacktrace
java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log;
        at java.lang.Class.getDeclaredFields0(Native Method)
        at java.lang.Class.privateGetDeclaredFields(Class.java:2259)
        at java.lang.Class.getDeclaredFields(Class.java:1715)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:867)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:884)
        Truncated. see log file for complete stacktrace
>
<Jun 10, 2009 2:55:14 PM IST> <Warning> <Deployer> <BEA-149004> <Failures were detected while initiating activate task for application 'jboss-seam-boo
king'.>
<Jun 10, 2009 2:55:14 PM IST> <Warning> <Deployer> <BEA-149078> <Stack trace for message 149004
java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log;
        at java.lang.Class.getDeclaredFields0(Native Method)
        at java.lang.Class.privateGetDeclaredFields(Class.java:2259)
        at java.lang.Class.getDeclaredFields(Class.java:1715)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:867)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:884)
        Truncated. see log file for complete stacktrace
java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log;
        at java.lang.Class.getDeclaredFields0(Native Method)
        at java.lang.Class.privateGetDeclaredFields(Class.java:2259)
        at java.lang.Class.getDeclaredFields(Class.java:1715)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:867)
        at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:884)
        Truncated. see log file for complete stacktrace
>
<Jun 10, 2009 2:55:14 PM IST> <Error> <Console> <BEA-240003> <Console encountered the following error weblogic.application.WrappedDeploymentException:
Lorg/apache/commons/logging/Log;
        at java.lang.Class.getDeclaredFields0(Native Method)
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