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？

5 x3 b; I( b* w+ {3 K0 z! i0 ~1 \conveyor元素的input rule：
+ K& ]+ S9 q# s* _: Wif nparts(coneyor001)<5
- X% A$ A4 m' |( Ipull from buf1 with labor1 using path
0 {# w$ r' W3 {( N4 Uelse
wait
endif