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？

/ n1 l& e* {; s; I/ p% J9 nconveyor元素的input rule：
5 f7 d6 p# K5 ~5 cif nparts(coneyor001)<5
pull from buf1 with labor1 using path
8 d7 L6 C! v. \2 ]- [* J- a, V( C1 H. U; telse
: y6 K" ]% x2 Fwait
' A4 U) Z9 I! @, S, v' A& P" jendif