我用Protel99导入pcb时出现
Exception Information
Exception Occurred In:
EDS:synchronize design :
Note:After any system crash it is good practice to save your :
下面有两个选项
Lgnore:lgnore exception and return to:
Quit:Quit application .You well be prompted save:
请问这是怎麽回事啊?谢谢!