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？

  V& ]  r) X$ w4 c# f3 f( _) X: Iconveyor元素的input rule：
7 L' t9 D8 I2 x5 y- p( Eif nparts(coneyor001)<5
pull from buf1 with labor1 using path
else
wait
+ y( k) x. Q8 k6 Fendif