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？
$ s; j" v, K/ i2 m  V3 c( Q4 T# d
) c. U* r" L5 J' J, Y: y4 @conveyor元素的input rule：
6 T+ h2 h6 t: Uif nparts(coneyor001)<5
# ^- k0 B* u6 L) E, \8 m3 Gpull from buf1 with labor1 using path
7 x/ ]5 r; @4 {/ a/ j7 Aelse
wait
0 }! R2 h3 g: E/ \endif