PADS layout报错Section *DELPIN*

Line 6 , Section *DELPIN*
C411.1  N16872558
* Part name C411 not found
Line 7 , Section *DELPIN*
C411.2  N16871145
* Part name C411 not found
Line 8 , Section *DELPIN*
C412.1  N16871207
* Part name C412 not found
Line 9 , Section *DELPIN*
C412.2  N16869482
* Part name C412 not found
是什么原因导致的，求高手帮助