Hi all ,
While trying to ant deploy simple CMP on Weblogic 6.1 , I get the 
following error.Can anybody suggest where am I going wrong?

ejbc:
     [java] weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ 
Deploy
ent Error: java.lang.NoSuchFieldException ]
     [java]     at weblogic.ejb20.persistence.CMPBeanDescriptorImpl.<init>
(CMPB
anDescriptorImpl.java:287)
     [java]     at 
weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeBe
nInfos(MBeanDeploymentInfoImpl.java:411)
     [java]     at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.<init>
(MBean
eploymentInfoImpl.java:126)
     [java]     at weblogic.ejb20.ejbc.EJBCompiler.setupEJB
(EJBCompiler.java:12
)
     [java]     at weblogic.ejbc20.runBody(ejbc20.java:358)
     [java]     at weblogic.utils.compiler.Tool.run(Tool.java:79)
     [java]     at weblogic.ejbc.main(ejbc.java:21)
     [java] weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ 
Deploy
ent Error: java.lang.NoSuchFieldException ]
     [java]     at weblogic.ejb20.persistence.CMPBeanDescriptorImpl.<init>
(CMPB
anDescriptorImpl.java:287)
     [java]     at 
weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeBe
nInfos(MBeanDeploymentInfoImpl.java:411)
     [java]     at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.<init>
(MBean
eploymentInfoImpl.java:126)
     [java]     at weblogic.ejb20.ejbc.EJBCompiler.setupEJB
(EJBCompiler.java:12
)
     [java]     at weblogic.ejbc20.runBody(ejbc20.java:358)
     [java]     at weblogic.utils.compiler.Tool.run(Tool.java:79)
     [java]     at weblogic.ejbc.main(ejbc.java:21)
     [java] Exception in thread "main"
     [java] Java Result: 1

compile_webapp:
    [javac] Compiling 2 source files to C:\bea\wlserver6.1
\config\examples\appl
cations\examplesWebApp\WEB-INF\classes

compile_client:
    [javac] Compiling 3 source files to C:\bea\wlserver6.1
\config\examples\clie
tclasses

all:

BUILD SUCCESSFUL
Total time: 6 seconds

Thanks in advance,
Rampreet