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quoddle · 07-22-2022, 07:32 AM

Hi,
I've been trying to upgrade to Calibre 6.1 on a 64bit W10 pc running Windows Defender. It installs normally but when I run it I get "This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: direct2d, minimal, offscreen, Windows"

I've tried reinstalling several times with the same result. I've had to uninstall and go back to 5.44 which woks fine.

Anything I can do to get the new version working?

07-22-2022, 07:32 AM	#1
quoddle Enthusiast Posts: 45 Karma: 10 Join Date: Oct 2009 Device: Kobo Libra H20	Upgrade W10 64bit Hi, I've been trying to upgrade to Calibre 6.1 on a 64bit W10 pc running Windows Defender. It installs normally but when I run it I get "This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: direct2d, minimal, offscreen, Windows" I've tried reinstalling several times with the same result. I've had to uninstall and go back to 5.44 which woks fine. Anything I can do to get the new version working?