database 错误提示？

database 错误提示?

打开candence目录下的.brd文件就出现“database was last saved by a higher tier tool,allegro expert,there maybe constraints,rules and other design data,that maybe ignored in this tool”，打开显示不全。好象是说版本有问题，

自带的文件怎么会有这个问题?

file\change editor下 改为allegro expert   

再打开试试