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？
- z8 d2 G# y. a( K% d0 [
( L( Y$ n% Z5 fconveyor元素的input rule：
1 I/ o. O& U6 L0 x  @if nparts(coneyor001)<5
3 v" d, ~3 L$ ^. ?pull from buf1 with labor1 using path
2 b. `" d1 M+ P, o1 f- B+ delse
wait
endif