KiCAD 8.0 on Windows 10 64-bit.
I open the project via the project file (so I know the project is not missing) and try to edit schematic or layout properties, and am met with this error.
I’ve searched around and saw this could be an issue with Windows file/directory permissions or Dropbox interactions.
I’ve copied the project folder from Dropbox and quit dropbox but the problem persists even with this new copy.
I check in Windows explorer and confirm the files are not marked read only. I checked every single file property and none are marked as read only.
Should I just update to 9.0 and see if it’s resolved?