White King 0 Newbie Poster

Hallo,
Am Having Ebilling And Invoice system project.In Report Section am having error as variable not found.
code-
cr1.windowState=crptMaximised - ERROR
Cr1.ReportFileName=App.Path &"\reports\billsummery.rpt"
cr1.DataFiles(0)=App.Path & "\data.mdb"
cr1.action