I just hit this issue too after upgrade to 4.0.1. As pgvoorhees suggests, deleting all the github footprints and then reloading them using the Append With Wizard fixed it for me.
To spell it out for noobs like me:
- In cvpcb, select Preferences => Footprint Libraries. Highlight all the github libraries and right-click => cut.
- Close cvpcb and reopen it (probably not necessary but I did it anyway).
- Open the Footprint Libraries again and click Append with Wizard
- Select Github repository and Save a local copy to:
- Browse to a folder you can write to (unfortunately, the Windows installer writes all KiCad files to c:\program files\Kicad by default which can cause file access permissions issues). I created a footprints folder under my local Projects folder).
- Click Next, click Select all, click Next
- Cvpcb will validate all the libraries and list them.
- Click Next
- Select To global library configuration … (assuming you want the loaded libraries to be visible to all future projects)
- And finally click Finish. cvpcb will download a copy of all the libraries into the selected directory.
Cheers, Bob.