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Broken EPUB support in Okular and Calibre on KDE neon

User avatar win8linux
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Was planning on reading some EPUBs on my desktop, however I found out that Okular couldn't read them anymore. This is very odd, considering that the Okular website lists support for it:
https://okular.kde.org/formats.php

It seems that KDE neon doesn't have ebook-tools, which Okular needs to read EPUBs. However for some reason, it still has the package for debugging symbols.
Next I tried to install Calibre, which two packages exist for (calibre, calibre-bin). Unfortunately, both failed to install.

Error when installing calibre:
Code: Select all
Broken calibre:amd64 Depends on calibre-bin:amd64 < none | 4.99.4+dfsg+really4.12.0-1build1 @un uH > (>= 4.99.4+dfsg+really4.12.0-1build1)
  Considering calibre-bin:amd64 0 as a solution to calibre:amd64 9998
    Reinst Failed early because of qtbase-abi-5-12-8:amd64

Error when installing calibre-bin:
Code: Select all
Broken calibre-bin:amd64 Depends on qtbase-abi-5-12-8:amd64 < none @un H >
  Considering libqt5core5a:amd64 4191 as a solution to calibre-bin:amd64 9998

As it stands at the moment, no Qt-based EPUB readers work on KDE neon.
User avatar gerdeg
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Just tested the first problem. Okular chokes on some epub's, true, but not on others. I don't know why that is.

And regarding Calibre: it's a known issue. Install Calibre via their website: https://calibre-ebook.com/download_linux . That works.
gguerin
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Had the same problem here with Okular on Neon.

That's because you need to install the okular-extra-backends package. Then it works

(Btw epub-tools is replaced by libepub0, that's why you couldn't find it)
martasenior
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Esa duda también la tuve yo en su día, yo encontré un tutorial bastante bueno . Os dejo link por si os sirve para más cosas. Un saludo. https://www.descargacalibre.org

 
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