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？
/ }* i" w( ~3 y% D1 ]; }
7 m" ?; X# `8 L9 o4 o" @/ \/ [conveyor元素的input rule：
/ {/ D" W0 i8 s& b1 ~- zif nparts(coneyor001)<5
. R3 s- h4 B  h' f$ P9 S3 k; h# Npull from buf1 with labor1 using path
else
wait
endif