在产生光绘文件的时候出错

通过查看log，只有下面的warning：
WARNING: No Photoplot Outline was found,
negative shape outline will be determined by Board Outline
是这个原因吗 ?

打开DBdoctor之后，还未运行，先查看log，发现有2100多个这种error
ERROR IN RATSNEST
  POINTER TO RATSNEST INVALID
ERROR IN RATSNEST net name = ANALOG24
  POINTER TO RATSNEST INVALID
只有最后一个error给出了net name。郁闷啊，咋回事啊

运行DBdoctor之后再查看log：
ERROR IN RATSNEST
  POINTER TO RATSNEST INVALID
   Error was fixed.
ERROR IN RATSNEST net name = ANALOG24
  POINTER TO RATSNEST INVALID
   Error was fixed.
WARNING IN NET name = ANALOG24
  WARNING(SPMHDB-43): Ratsnest lines are out of date.
   Warning was fixed.
WARNING IN NET name = ANALOG10
  WARNING(SPMHDB-43): Ratsnest lines are out of date.
   Warning was fixed.
WARNING IN NET name = GND
  WARNING(SPMHDB-43): Ratsnest lines are out of date.
   Warning was fixed.
WARNING   WARNING(SPMHDB-42): Run batch DRC to correctly regenerate DRC errs.
4 warnings, 2100 errors detected, 2100 errors  fixed.

这是个什么性质的错误啊?什么原因造成的?仅仅是因为没有update DRC吗?

是的，每次在最后出GerBer前一定要update DRC，因为你的PCB中有动态铜（dynamic shape）。
其中很多Error is fixed,是指修复了DRC。

多谢！