Attempt to add part at undefined sensor 1 on conveyor coneyor001？

dd13616

Attempt to add part at undefined sensor 1 on conveyor coneyor001是怎么回事？

; X2 V# K7 s1 `" `3 W* X  |. H+ Econveyor元素的input rule：
7 L; _: J. \& rif nparts(coneyor001)<5
pull from buf1 with labor1 using path
% P& K/ S- `3 i* X+ m3 F% Belse
wait
3 t# d2 N4 ^, N7 ?endif