createcontext: "unrecognized method hash: method not supported by remote object"

[tobias.johannes]

hey,...

i want to install a fresh version of OX Appsuite 7.8.0

when i run the following command (from oxpedia: http://oxpedia.org/wiki/index.php?ti...exts_and_users), i get the following error message:

command:

/opt/open-xchange/sbin/createcontext -A oxadminmaster -P admin_master_password -c 1 \
-u oxadmin -d "Context Admin" -g Admin -s User -p admin_password -L defaultcontext \
-e oxadmin@example.com -q 1024 --access-combination-name=groupware_standard

error message:

context 1 could not be created:
Server response:
 RemoteException occurred in server thread; nested exception is:
        java.rmi.UnmarshalException: unrecognized method hash: method not supported by remote object
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:353)
        at sun.rmi.transport.Transport$2.run(Transport.java:202)
        at sun.rmi.transport.Transport$2.run(Transport.java:199)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:198)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:567)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.access$400(TCPTransport.java:619)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:684)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:681)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:681)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
        at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:275)
        at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:252)
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:161)
        at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:217)
        at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:171)
        at com.sun.proxy.$Proxy0.create(Unknown Source)
        at com.openexchange.admin.console.context.Create.maincall(Create.java:146)
        at com.openexchange.admin.console.context.CreateCore.commonfunctions(CreateCore.java:145)
        at com.openexchange.admin.console.context.Create.<init>(Create.java:80)
        at com.openexchange.admin.console.context.Create.main(Create.java:84)