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？
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5 o% V) v- q" D. Qconveyor元素的input rule：
if nparts(coneyor001)<5
8 Y& T& y4 \* ]pull from buf1 with labor1 using path
: l- A) a$ R) f7 Ielse
# A  r1 h, E7 H0 Q9 p8 |wait
, ]% }0 Z+ N& Iendif