Calibre doesn't open

AnnaSartin · 09-08-2024, 02:46 PM

Calibre stopped opening on my laptop; when I try to open it, literally nothing happenes. So I restarted the laptop hoping that would fix it. It didn't. Next I uninstalled Calibre and reinstalled it, then restarted the laptop again. Still nothing. Then I tried the compatibility troubleshooter, but it seems to only troubleshooter for Windows 7, 8, and Vista (I have Windows 10 Home). I looked at the FAQ and deleted the metadata.db file mentioned. Still no help. Lastly, I tried the calibre-debug in command prompt, entered -g and the prompt told me "NameError: name "g" is not defined.

I'm at a loss, does anyone know how to resolve this?

JSWolf · 09-08-2024, 03:16 PM

Quote:

Originally Posted by AnnaSartin

Calibre stopped opening on my laptop; when I try to open it, literally nothing happenes. So I restarted the laptop hoping that would fix it. It didn't. Next I uninstalled Calibre and reinstalled it, then restarted the laptop again. Still nothing. Then I tried the compatibility troubleshooter, but it seems to only troubleshooter for Windows 7, 8, and Vista (I have Windows 10 Home). I looked at the FAQ and deleted the metadata.db file mentioned. Still no help. Lastly, I tried the calibre-debug in command prompt, entered -g and the prompt told me "NameError: name "g" is not defined.

I'm at a loss, does anyone know how to resolve this?

Do you have the latest version of Windows 10? The version of QT used in calibre has changed to a newer version and you're Windows 10 needs to be basically at the latest version.

Turn off your AV, reboot, and try calibre. Also try safe mode in case something you are running is causing a problem. If calibre does work on your system, you'll have to stop everything running one-by-one (reboot inbetween) until you find what's stopping calibre.

AnnaSartin · 09-08-2024, 06:05 PM

Quote:

Originally Posted by JSWolf

Do you have the latest version of Windows 10? The version of QT used in calibre has changed to a newer version and you're Windows 10 needs to be basically at the latest version.

Turn off your AV, reboot, and try calibre. Also try safe mode in case something you are running is causing a problem. If calibre does work on your system, you'll have to stop everything running one-by-one (reboot inbetween) until you find what's stopping calibre.

Updated Windows and restarted, no dice. I tried the command prompt again and now it's giving me a bunch of text.

C:\Users\Kenneth Alexander>calibre-debug -g
calibre 7.17 embedded-python: True
Windows-10-10.0.19045-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19045')
Python 3.11.5
Windows: ('10', '10.0.19045', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre-debug.exe
QPA platform: windows
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 106.38743455497382 x 106.82242990654204
ApplicationPaletteChange event ignored
Using calibre Qt style: True

kovidgoyal · 09-09-2024, 01:21 AM

Try rebooting in safe mode does it work there?

AnnaSartin · 09-09-2024, 06:32 AM

Quote:

Originally Posted by kovidgoyal

Try rebooting in safe mode does it work there?

No, doesn't open in Safe Mode, either.

AnnaSartin · 09-14-2024, 08:15 PM

Downloaded Version 7.18.0 today and it has the same problem. I did discover that if I right-click Open File Location I can at least pull up the Ebook Viewer and use it, but still nothing opens up the main Calibre window that lets me do stuff like add books to the Calibre Library or transfer books to my Kindle.

09-08-2024, 02:46 PM	#1
AnnaSartin Junior Member Posts: 4 Karma: 10 Join Date: Sep 2024 Device: Kindle	Calibre doesn't open Calibre stopped opening on my laptop; when I try to open it, literally nothing happenes. So I restarted the laptop hoping that would fix it. It didn't. Next I uninstalled Calibre and reinstalled it, then restarted the laptop again. Still nothing. Then I tried the compatibility troubleshooter, but it seems to only troubleshooter for Windows 7, 8, and Vista (I have Windows 10 Home). I looked at the FAQ and deleted the metadata.db file mentioned. Still no help. Lastly, I tried the calibre-debug in command prompt, entered -g and the prompt told me "NameError: name "g" is not defined. I'm at a loss, does anyone know how to resolve this?

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09-09-2024, 01:21 AM	#4
kovidgoyal creator of calibre Posts: 44,563 Karma: 24495948 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Try rebooting in safe mode does it work there?

09-14-2024, 08:15 PM	#6
AnnaSartin Junior Member Posts: 4 Karma: 10 Join Date: Sep 2024 Device: Kindle	Downloaded Version 7.18.0 today and it has the same problem. I did discover that if I right-click Open File Location I can at least pull up the Ebook Viewer and use it, but still nothing opens up the main Calibre window that lets me do stuff like add books to the Calibre Library or transfer books to my Kindle.

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