为什么生成底片文件不成功？

--- Photoplot outline rectangle not found ... using drawing extents




 Can't open parameter file ... using default values:
     DEVICE-TYPE        GERBER6X00
     G-CODES            NO
     STATIONS-PER-WHEEL 24
     FILM-SIZE          24000 16000
     COORDINATES        ABSOLUTE
     OUTPUT-UNITS       INCHES
     FORMAT             5.3
     ABORT-ON-ERROR     abort film & continue
     SUPPRESS-LEAD-ZEROES     YES
     SUPPRESS-TRAIL-ZEROES    NO
     OPTIMIZE           YES
     SUPPRESS-EQUAL     YES
     SCALE              1.0



 WARNING: database resolution exceeds the resolution of the
      output coordinates (see FORMAT in parameter file).
      Some roundoff of coordinates may occur unless the number
      of decimal places in the output file is increased.


 ARTWORK Error reading apertures.
每次生成底片时都出现上面信息，请高手赐教。

database resolution过大。加个photoplot框即可