The WebLogic Server did not start up properly.java.io.Invalid Class Exception...?

[Mallik Avula]

Hi friends i am using MyEclipse 5, eclipse3.2 and Weblogic 8.1
when i start the weblogic normally it is running fine, but if i start it from MyEclipse it is giving the following error .

The WebLogic Server did not start up properly.
java.io.InvalidClassException: javax.management.MBeanAttributeInfo; local class incompatible: stream classdesc serialVersionUID = 7043855487133450673, local class serialVersionUID = 8644704819898565848
at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:546)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1551)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1465)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1551)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1465)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1698)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1304)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1633)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1298)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1917)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1841)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1718)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1304)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349)
at weblogic.management.internal.TypesHelper.getMBeanInfo(TypesHelper.java:261)
at weblogic.management.internal.TypesHelper.getAdminOrConfigMBeanInfo(TypesHelper.java:366)
at weblogic.management.internal.ConfigurationMBeanImpl.<init>(ConfigurationMBeanImpl.java:128)
at weblogic.management.AdminServer.<init>(AdminServer.java:59)
at weblogic.management.AdminServerAdmin.initialize(AdminServerAdmin.java:245)
at weblogic.t3.srvr.T3Srvr.initializeHere(T3Srvr.java:753)
at weblogic.t3.srvr.T3Srvr.initialize(T3Srvr.java:664)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:342)
at weblogic.Server.main(Server.java:32)
--------------- nested within: ------------------
weblogic.management.configuration.ConfigurationException: - with nested exception:

why this is? how to solve this?
plase waiting for replies?

Regards
Mallik Avula

[Nathan Pruett]

The first thing to check is to make sure that Eclipse and Weblogic are running in the same JVM version. (i.e. both 1.4 or 1.5, etc.)