jnodeos-20020317 build error..

["statue" <statue@webbbs.yzu.edu.tw>]

statue@home[~/janos/jnodeos-20020317]# ./build
    :
    :
Preprocessing
/root/janos/jnodeos-20020317/src/nodeos/pj_PacketHandlerList.Java
Preprocessing
/root/janos/jnodeos-20020317/src/nodeos/pj_PortAddressMask.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_ProtocolLayer.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_Setup.Java
Preprocessing
/root/janos/jnodeos-20020317/src/nodeos/pj_StdinStreamLayer.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_TCPStreamLayer.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_Thread.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_ThreadPool.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_ThreadPoolSpec.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_TimeSpec.Java
Preprocessing /root/janos/jnodeos-20020317/src/nodeos/pj_UDPLayer.Java
Preprocessing
/root/janos/jnodeos-20020317/src/nodeos/pj_UDPSocketReader.Java
Compiling nodeos package (debug)
/root/janos/jnodeos-20020317/src/nodeos/pj_InChannelDispatcher.Java:37:
error:Cannot find type "pj_ProtocolLayer/PacketHandler"
/root/janos/jnodeos-20020317/src/nodeos/pj_OutChannel.Java:38: error:Cannot
find type "pj_ProtocolLayer/PacketGenerator"
/root/janos/jnodeos-20020317/src/nodeos/pj_PortAddressMask.Java:36:
error:Cannot find type "pj_ProtocolLayer/PacketAddressMask"
metal:classPath.c:1216:classPath[1016376769.644280] - Warning:string=Empty
path in class path
gmake[1]: *** [.compile_nodeos] Error 1
gmake: *** [all] Error 2