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？
4 X3 i% e. E4 ?+ x# r* F; l' m& x
) ]' h+ C0 n( P: gconveyor元素的input rule：
& k5 f* s' q- R/ q$ w+ I2 Sif nparts(coneyor001)<5
pull from buf1 with labor1 using path
else
wait
- F  ^5 V4 u6 z. Mendif