Gerber RS274X转图出错！ ERROR: undefined aperture symbol

create artwork的时候有些底片可以生成，有些却报错。
大家有遇过吗？恳请有解决方法的好心人分享一下！thanks!!
error信息如下：
PROCESSING FILM < ATS01CTRL_A36_00.art > ...
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FILM PARAMETERS :
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Undefined line width 0.254
Suppress shape fill on neg film NO
Mirror code NONE
Rotate angle NONE
Offset x: 0.000
Offset y: 0.000
Plot negative NO
Suppress unconnected internal pads NO

APERTURES USED:
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TYPE SIZE/NAME ROT MIRROR MODE
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CIRCLE 1.00000 DARK
RECTANGLE 0.85000 x 0.70000 0.000 NO DARK
RECTANGLE 0.85000 x 0.70000 90.000 NO DARK
RECTANGLE 0.90000 x 0.70000 0.000 NO DARK
RECTANGLE 0.90000 x 0.70000 90.000 NO DARK
RECTANGLE 1.20000 x 0.75000 0.000 NO DARK
RECTANGLE 1.30000 x 0.95000 90.000 NO DARK
RECTANGLE 1.40000 x 0.50000 0.000 NO DARK
RECTANGLE 1.95000 x 1.30000 90.000 NO DARK
RECTANGLE 1.95000 x 1.55000 0.000 NO DARK
RECTANGLE 2.25000 x 1.50000 0.000 NO DARK
RECTANGLE 2.25000 x 1.50000 90.000 NO DARK
RECTANGLE 2.35000 x 1.45000 0.000 NO DARK
RECTANGLE 2.55000 x 1.05000 0.000 NO DARK
RECTANGLE 2.55000 x 1.05000 90.000 NO DARK
RECTANGLE 2.55000 x 2.10000 0.000 NO DARK
RECTANGLE 2.65000 x 1.00000 90.000 NO DARK
RECTANGLE 3.30000 x 1.15000 90.000 NO DARK
RECTANGLE 3.50000 x 1.60000 0.000 NO DARK
FLASH SYM FL173145-2 0.000 NO DARK
FLASH SYM FL280255-4 0.000 NO DARK
FLASH SYM FL173145-2 270.000 NO DARK (undefined)

ERROR: aborting film - undefined aperture symbol - cannot continue
Error in ATS01CTRL_A36_00--halting output. Artwork file not generated.
*** ERROR with ATS01CTRL_A36_00