Java APIs

getting the following exception when i run my application


java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.io.InvalidClassException: jisp.base.RateGroupInfo; Local class not compatible: stream classdesc serialVersionUID=-4194683926821053521 local class serialVersionUID=-4463005701135703527

java.io.InvalidClassException: jisp.base.RateGroupInfo; Local class not compatible: stream classdesc serialVersionUID=-4194683926821053521 local class serialVersionUID=-4463005701135703527

at java.io.ObjectStreamClass.validateLocalClass(Unknown Source)

at java.io.ObjectStreamClass.setClass(Unknown Source)

at java.io.ObjectInputStream.inputClassDescriptor(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at java.io.ObjectInputStream.inputClassDescriptor(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at java.io.ObjectInputStream.inputObject(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at java.io.ObjectInputStream.inputArray(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at java.io.ObjectInputStream.inputClassFields(Unknown Source)

at java.io.ObjectInputStream.defaultReadObject(Unknown Source)

at java.io.ObjectInputStream.inputObject(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at java.io.ObjectInputStream.readObject(Unknown Source)

at sun.rmi.server.UnicastRef.unmarshalValue(Unknown Source)

at sun.rmi.server.UnicastRef.invoke(Unknown Source)

at jisp.cvms.server.CVMSRateGroupManagerImpl_Stub.getByRateGroupID(Unknown Source)

at jisp.base.client.GuiDataProvider.getRategroupsFromViewInfo(GuiDataProvider.java:2143)

at jisp.base.client.GuiDataProvider.getRategroup(GuiDataProvider.java:1973)

at jisp.base.client.GuiDataProvider.getRategroupWithService(GuiDataProvider.java:2119)

at jisp.base.client.GeneralRateGroupScreen.openScreen(Unknown Source)

at jisp.base.client.DefaultScreen$OpenGuiOperation.execute(DefaultScreen.java:65)

at jisp.base.client.BaseInternalFrame$1.actionPerformed(Unknown Source)

at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)

at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source)

at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)

at javax.swing.DefaultButtonModel.setPressed(Unknown Source)

at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)

at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)

at java.awt.Component.processMouseEvent(Unknown Source)

at java.awt.Component.processEvent(Unknown Source)

at java.awt.Container.processEvent(Unknown Source)

at java.awt.Component.dispatchEventImpl(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)

at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)

at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

what could be the possible error please help me
Thanks in advance