PowerPCB 生成光绘文件出错.请教.

我在进行铺铜时.虽然最后还是生成了.但先后弹出这么多对话框.  我百度又没有查出什么. 有没有大虾遇到类似的问题啊. 很急  这样生成的光绘能不能用啊.   另外弱弱地问一句.成都真的没有能直接接PowerPCB产商吗.

Warning- No symbol for size: 25 - used symbol: Hour Glass
Warning- No symbol for size: 55 - used symbol: +
Warning- No symbol for size: 28 - used symbol: x
Warning- No symbol for size: 32 - used symbol: Rectangle
Warning- No symbol for size: 35 - used symbol: Diamond
Warning- No symbol for size: 38 - used symbol: Bow Tie
Warning- No symbol for size: 110 - used symbol: +A
Warning- No symbol for size: 40 - used symbol: +B
Warning- No symbol for size: 65 - used symbol: +C
Warning- No symbol for size: 135 - used symbol: +D
Warning- No symbol for size: 137.79 - used symbol: +E
Warning- No symbol for size: 138 - used symbol: +F
Warning- No symbol for size: 16 - used symbol: +G

不算错，是提示你哪些孔大小用什么符号代替

谢谢楼上的哈