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？
& z+ P3 n4 S$ `7 d# g) g6 t5 Z
2 v, z, Q: Y  j* L0 ]1 k! oconveyor元素的input rule：
8 e3 w( [9 w& j4 v+ n9 vif nparts(coneyor001)<5
1 m0 w  p4 y8 Q. n5 hpull from buf1 with labor1 using path
4 Y6 p% C- ~; ^) X: Oelse
wait
endif