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？
( {8 r! U- U6 j+ U8 Q* n' H* O
8 O9 I  Q, D5 q$ Q3 u# Econveyor元素的input rule：
  `, ~4 _0 b$ \if nparts(coneyor001)<5
& i( S# z0 d8 d5 q9 @pull from buf1 with labor1 using path
else
- B2 d6 T2 X& P# vwait
endif