怪？！“Warning - Apertures are used which have a size of 0.

一、99SE出GERBER后用CAM350打开看到“NC Drill"离得远远的，还挤到一堆，是不是有问题呀？这样给厂家能加工么？
二、用CAM350导入时会出现十几个记事本提示错误，且都是一样的内容，如下：
Cannot convert the following lines in file "C:\............."
Line 48: Error Creating Aperture: Width must be greater than 0.
for Dcode 57.
D57 ROUNDED 0.000 0.000 0.000 LINE

我是新手，请赐教，谢谢！