Issues after updating to calibre 6.1 64 bits

[Denis_F]

Hi,

I experience several issues after updating to calibre 6.1 - 64 bits no windows 10 :

1/ Kepub output extension does not work properly (Error "No module named 'PyQt4'"). This is now nicely solved thanks to davidfor's kepub output beta version (see this thread)

2/ Calibre is unable to properly launch the E-book viewer when clicking on a book in calibre (details of the error log attached), although the E-book viewer is properly installed and running when launched directly from the installation folder.
(btw, I have uninstalled and re-installed Calibre, but this did not help, I also checked the path environment variable, which is correctly set to C:\Program Files\Calibre2\ ...)

Thank you for your help !

[BetterRed]

Originally Posted by Denis_F

Hi,

I experience several issues after updating to calibre 6.1 - 64 bits no windows 10 :

2/ Calibre is unable to properly launch the E-book viewer when clicking on a book in calibre (details of the error log attached), although the E-book viewer is properly installed and running when launched directly from the installation folder.
(btw, I have uninstalled and re-installed Calibre, but this did not help, I also checked the path environment variable, which is correctly set to C:\Program Files\Calibre2\ ...)

Thank you for your help !

That error (can't start worker process) is most often caused by a third party AntiVirus package - excluding the calibre install folder should fix it.

BR

[BetterRed]

Moderator Notice

Moved from the Issues after updating to calibre 6.1 64 bits thread.

BR

[Denis_F]

Originally Posted by BetterRed

That error (can't start worker process) is most often caused by a third party AntiVirus package - excluding the calibre install folder should fix it.

BR

Thank you for your help BetterRed. Unfortunaltely excluding calibre install folder did not help. I did some more experiments, and what happens is in fact more tricky : Calibre is unable to properly launch the E-book viewer only when the ebook format is KEPUB, but it works perfectly fine when the format is standard EPUB...

[theducks]

Originally Posted by Denis_F

Thank you for your help BetterRed. Unfortunaltely excluding calibre install folder did not help. I did some more experiments, and what happens is in fact more tricky : Calibre is unable to properly launch the E-book viewer only when the ebook format is KEPUB, but it works perfectly fine when the format is standard EPUB...

Preferences: Behavior: Use internal viewer for: <tick those you need> <remove ticks for those the OS is to handle>

[JSWolf]

Originally Posted by theducks

Preferences: Behavior: Use internal viewer for: <tick those you need> <remove ticks for those the OS is to handle>

I do have KePub checked and yes, it does open with Calibre's viewer.

[Denis_F]

Originally Posted by theducks

Preferences: Behavior: Use internal viewer for: <tick those you need> <remove ticks for those the OS is to handle>

Thanks a lot theducks, this is indeed what I needed ! (in the previous versions, the viewer was set to read kepub by default, so I never had to set this option)

[BetterRed]

The viewer should be able to read any format. What AV are you using?

I should have been explicit before, you need exclude the C:\Program Files\Calibre2\ folder.

BR

[Denis_F]

Originally Posted by BetterRed

The viewer should be able to read any format. What AV are you using?

I should have been explicit before, you need exclude the C:\Program Files\Calibre2\ folder.

BR

I use the default windows 10 AV, and I indeed excluded the C:\Program Files\Calibre2\ folder, but this did not help...setting the options as indicated by theducks did the trick. thanks anyway for your interest !