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" g$ Z& u) M4 I+ c2 cconveyor元素的input rule：
9 M+ k( M  f2 K/ W& e' Zif nparts(coneyor001)<5
pull from buf1 with labor1 using path
else
, V9 y3 j# n: q6 Y0 R+ P$ Lwait
, A/ c: U& g0 [endif