I am getting these errors when I build my project. cAn anyoen tell me how to go around this?

REPLACE IN_LIST WITH .T. FOR HTC_ID = M.HTCID AND BETWEEN(VISDATE,{01/01/2000},M.DATE2)
Error in line 203: Ambiguous date/datetime constant. Use the format:
{^yyyy-mm-dd[,][hh[:mm[:ss]] [a|p]]}