Hi, I created a schematic last year and have not been back to it for a while, I recently updated Debian Linux from 8 to 9 and need to reinstall Kicad, when I use the Debian repositories or JS-Reynards ppa I get versions that are earlier than what I had, unfortunately I don’t remember the version I had, so my question is twofold, either how to I find out the version I had, or how do I get the latest version beyond 4x
But maybe your file can be repaired such that you can open it with kicad stable. Could you post the exact error message?
I assume it is either because your pcb file includes rules for differential pairs or because you have footprints with rounded rectangle pads.
If it is because of rounded rectangle pads you can replace them by rectangle pads (if you don’t really need them) or by overlapping circle pads and rectangle pads if you really need rounded rectangle pads.
If it is because of the differential pair stuff: You can remove these rules from the file if you don’t use differential pairs in your project.
Thanks for all the help, It’s probably not worth anymore effort to fix as it is a small pcb and the schematic opens OK, I will have a look at the pads etc, but it will be quicker to redo it. It’s only for me anyway.