ifteqar ahmed [https://community.jboss.org/people/ifteqar2011] created the discussion "java.io.InvalidClassException: org.jboss.ejb3.remoting.BaseRemoteProxy; local class incompatible" To view the discussion, visit: https://community.jboss.org/message/725008#725008 -------------------------------------------------------------- Hi, I am using Jboss-5.1.0 GA on client side and JBoss-EAP 4.3 as Remote Server. First I brought up Jboss-4.3 EAP Remote Server and while bringing up the Client JBoss-5.1.0 GA i am getting the below ERROR Please help 1. Caused by: java.io.InvalidClassException: org.jboss.ejb3.remoting.BaseRemoteProxy; local class incompatible: stream classdesc serialVersionUID = 1126421850898582900, local cl  2. ass serialVersionUID = -2711693270411201590  3.         at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:546)  4.         at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1552)  5.         at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)  6.         at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1552)  7.         at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)  8.         at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699)  9.         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)  10.         at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908)  11.         at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832)  12.         at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)  13.         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)  14.         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)  15.         at java.rmi.MarshalledObject.get(MarshalledObject.java:135)  16.         at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72)  17.         at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:769)  18.         ... 90 more  -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/725008#725008] Start a new discussion in Beginner's Corner at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]