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？
2 |$ E( i" E5 z( p9 _
" t3 r) C" J' [7 r# Econveyor元素的input rule：
if nparts(coneyor001)<5
4 p. B' T; T1 {/ upull from buf1 with labor1 using path
else
3 O. _) u9 @4 Z8 x$ bwait
endif