Error compiling pike script

/home/hww3/html/dist/Fins/FinsWin/lib/Fins.pmod/Model.pmod/DataObjectInstance.pike:1	Error: Index 'DataObject' not present in module ..
/home/hww3/html/dist/Fins/FinsWin/lib/Fins.pmod/Model.pmod/DataObjectInstance.pike:1	Error: Indexed module was: master()->joinnode(({ /* 1 element */
    master()->dirnode("/home/hww3/html/dist/Fins/FinsWin/lib/Fins.pmod/Model.pmod":0)
})).
/home/hww3/html/dist/Fins/FinsWin/lib/Fins.pmod/Model.pmod/DataObjectInstance.pike:1	Error: Illegal program identifier: 0.