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？
0 a: H4 |, Z' l5 G
, u$ r8 }0 ]) N8 ~  sconveyor元素的input rule：
if nparts(coneyor001)<5
pull from buf1 with labor1 using path
else
wait
' }% k  L7 V5 q' @+ V+ oendif