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？
/ E; A' I; r: r! n5 K
7 B) U; l/ {1 o# |6 _6 H( pconveyor元素的input rule：
if nparts(coneyor001)<5
pull from buf1 with labor1 using path
else
. A$ p) V0 t4 N6 `4 Gwait
# j* p6 q/ o5 |2 M0 Mendif