生成gerber的错误

小菜头一次生成gerber文件，出现了错误：
(------------------------------------------------------------)
(                                                            )
(        ARTWORK LOG                                         )
(                                                            )
(        Drawing          : icam_final.brd                   )
(        Software Version : 15.5p006                         )
(        Date/Time        : Tue May 22 15:53:06 2007         )
(                                                            )
(------------------------------------------------------------)



 ******************************************
 WARNING: DRC OUT OF DATE on this layout.
 ******************************************

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


Tue May 22 15:53:06 2007                Page     1

Photoplot log file
Results from parameter file ...

DEVICE-TYPE           GERBER6X00
OUTPUT-UNITS          INCHES
FILM-SIZE             24000 16000
FORMAT                5.3
ABORT-ON-ERROR        NO
SCALE                 1
G-CODES               YES
OPTIMIZE              YES
STATIONS-PER-WHEEL    999
COORDINATES           ABSOLUTE
SUPPRESS-LEAD-ZEROES  YES
SUPPRESS-TRAIL-ZEROES NO
SUPPRESS-EQUAL        YES

 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.

Tue May 22 15:53:06 2007                Page     1

Photoplot log file
Results from aperture table ...


INPUT-UNITS     INCHES

WHEEL     1


 ARTWORK Error reading apertures.

高手帮我看下都有哪些错误，该如何解决?
感激涕零！

FORMAT                5.3改成3和5,DRC要再CHECK下

我照你说的，改了之后的结果（先不管DRC）：
(------------------------------------------------------------)
(                                                            )
(        ARTWORK LOG                                         )
(                                                            )
(        Drawing          : icam_final.brd                   )
(        Software Version : 15.5p006                         )
(        Date/Time        : Tue May 22 16:05:49 2007         )
(                                                            )
(------------------------------------------------------------)



 ******************************************
 WARNING: DRC OUT OF DATE on this layout.
 ******************************************

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


Tue May 22 16:05:49 2007                Page     1

Photoplot log file
Results from parameter file ...

DEVICE-TYPE           GERBER6X00
OUTPUT-UNITS          INCHES
FILM-SIZE             2400000 1600000
FORMAT                3.5
ABORT-ON-ERROR        NO
SCALE                 1
G-CODES               YES
OPTIMIZE              YES
STATIONS-PER-WHEEL    999
COORDINATES           ABSOLUTE
SUPPRESS-LEAD-ZEROES  YES
SUPPRESS-TRAIL-ZEROES NO
SUPPRESS-EQUAL        YES

 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.

Tue May 22 16:05:49 2007                Page     1

Photoplot log file
Results from aperture table ...


INPUT-UNITS     INCHES

WHEEL     1



 ARTWORK Error reading apertures.