Calibre 7.24 not starting on Windows 11 - Page 2

straygrunt · 01-21-2025, 02:41 PM

Thanks. Is this a User variable or a System variable?

Shawn

DiapDealer · 01-21-2025, 02:42 PM

Quote:

Originally Posted by straygrunt

Mmm. The instructions were

'Go to c:\users\<username>\appdata\roaming and rename the directory calibre to calibre.bak.'

This I did, and when it didn't work, I changed it back. Did I miss something?

Maybe I missed something. Like why calibre is installed to D:\Applications and not something like D:\Applications\Calibre2? Or C:\Program Files\Calibre2?

JSWolf · 01-21-2025, 02:42 PM

Quote:

Originally Posted by straygrunt

Thanks. Is this a User variable or a System variable?

Shawn

System variable

DiapDealer · 01-21-2025, 02:45 PM

That's not going to do anything. Setting that environment variable will have no effect on the qt.qpa.plugin not being found.

JSWolf · 01-21-2025, 02:51 PM

@straygrunt you could try safe mode and see if calibre works. But before doing that, uninstall the calinre you have now and reinstall it to the default directory of c:\program files\calibre2.

DiapDealer · 01-21-2025, 02:56 PM

There's typically no problem with installing to a different location (other than possible permissions issues in the new location), but when calibre's binaries are located in a folder called D:\Applications, then I worry that the contents of what is typically the Calibre2 folder have been dumped into a folder that has other other binaries that could be using other versions of Qt.

straygrunt · 01-21-2025, 02:59 PM

Actually, you caught something I missed. When I used the FAQ to uninstall/reinstall, I think I pointed it to D:/applications thinking it would create a folder there called Calibre. I cleaned out there root of that folder and reinstalled again. Looks like it's working. I really appreciate the help on this.

Shawn

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01-21-2025, 02:41 PM	#16
straygrunt Junior Member Posts: 9 Karma: 10 Join Date: Jan 2025 Device: Kindle Paperwhite 10th	Thanks. Is this a User variable or a System variable? Shawn

01-21-2025, 02:45 PM	#19
DiapDealer Grand Sorcerer Posts: 28,270 Karma: 203719142 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	That's not going to do anything. Setting that environment variable will have no effect on the qt.qpa.plugin not being found.

01-21-2025, 02:51 PM	#20
JSWolf Resident Curmudgeon Posts: 78,478 Karma: 142993686 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	@straygrunt you could try safe mode and see if calibre works. But before doing that, uninstall the calinre you have now and reinstall it to the default directory of c:\program files\calibre2.

01-21-2025, 02:56 PM	#21
DiapDealer Grand Sorcerer Posts: 28,270 Karma: 203719142 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	There's typically no problem with installing to a different location (other than possible permissions issues in the new location), but when calibre's binaries are located in a folder called D:\Applications, then I worry that the contents of what is typically the Calibre2 folder have been dumped into a folder that has other other binaries that could be using other versions of Qt.

01-21-2025, 02:59 PM	#22
straygrunt Junior Member Posts: 9 Karma: 10 Join Date: Jan 2025 Device: Kindle Paperwhite 10th	Actually, you caught something I missed. When I used the FAQ to uninstall/reinstall, I think I pointed it to D:/applications thinking it would create a folder there called Calibre. I cleaned out there root of that folder and reinstalled again. Looks like it's working. I really appreciate the help on this. Shawn