I have no idea how come it happen, I just want to open my project, it opens for some reason in top bar saying (Read Only), and I see no schematic sheets!
How come it be gone?
I'v browsed internet for that kind of problem, it was amazing to see that it is a "common" Cadence software problem for Capture schematic to be gone like that, and typical workaround is to add .dsn file by hand and it should work.
Well, I tried that, I click on Design Resources with right button, browse to .dsn file inside my project, and press Add, and nothing happens!
what has gone wrong?
This is really a nasty problem right in the middle of a project!!
The DBK file is a backup file of the dsn that is created when you open the dsn file. Why your dsn file became corrupt ? Who knows - sometimes users close capture and yes to save to all and shut the PC down before capture has had chance to save all pages and the dsn file can become corrupt..... You need to allow a certain time when saving to remote network drives etc before closing PC's down.
There is an auto recovery command (Options - Preferences - Misc - Auto Recovery) that you can enable that will override the dbk file every 15 minutes (is the default) which is like a backup option.