Installing binary on Leap 15.6

[mischl]

Hello there

I´m trying to install Calibre 7.17 and beyond on Leap 15.6 and get the following
error message. As the result the reader window does not open.
Does anybody know what could be wrong, or to fix this ?

Many thanks in advance
Michael

---

Checking downloaded file integrity...
Extracting files to /opt/calibre ...
Extracting application files...
Creating symlinks...
Symlinking /opt/calibre/ebook-device to /usr/bin/ebook-device
Symlinking /opt/calibre/ebook-meta to /usr/bin/ebook-meta
Symlinking /opt/calibre/ebook-convert to /usr/bin/ebook-convert
Symlinking /opt/calibre/ebook-polish to /usr/bin/ebook-polish
Symlinking /opt/calibre/markdown-calibre to /usr/bin/markdown-calibre
Symlinking /opt/calibre/web2disk to /usr/bin/web2disk
Symlinking /opt/calibre/calibre-server to /usr/bin/calibre-server
Symlinking /opt/calibre/lrf2lrs to /usr/bin/lrf2lrs
Symlinking /opt/calibre/lrs2lrf to /usr/bin/lrs2lrf
Symlinking /opt/calibre/calibre-debug to /usr/bin/calibre-debug
Symlinking /opt/calibre/calibredb to /usr/bin/calibredb
Symlinking /opt/calibre/calibre-parallel to /usr/bin/calibre-parallel
Symlinking /opt/calibre/calibre-customize to /usr/bin/calibre-customize
Symlinking /opt/calibre/fetch-ebook-metadata to /usr/bin/fetch-ebook-metadata
Symlinking /opt/calibre/calibre-smtp to /usr/bin/calibre-smtp
Symlinking /opt/calibre/calibre to /usr/bin/calibre
Symlinking /opt/calibre/lrfviewer to /usr/bin/lrfviewer
Symlinking /opt/calibre/ebook-viewer to /usr/bin/ebook-viewer
Symlinking /opt/calibre/ebook-edit to /usr/bin/ebook-edit
Setting up command-line completion...
Installing zsh completion to: /usr/share/zsh/site-functions/_calibre
Package bash-completion was not found in the pkg-config search path.
Perhaps you should add the directory containing `bash-completion.pc'
to the PKG_CONFIG_PATH environment variable
No package 'bash-completion' found
Failed to find directory to install bash completions, using default.
Installing bash completion to: /usr/share/bash-completion/completions/
Failed to import PyQt module: PyQt6.QtWebEngineCore with error: /opt/calibre/lib/libQt6WebEngineCore.so.6: undefined symbol: FT_Get_Color_Glyph_Paint

____________________ WARNING ____________________
Setting up completion failed with error:
__________________________________________________


Traceback (most recent call last):
File "calibre/linux.py", line 838, in setup_completion
File "calibre/linux.py", line 588, in write_completion
File "bypy-importer.py", line 279, in exec_module
File "calibre/gui2/tweak_book/main.py", line 12, in <module>
File "bypy-importer.py", line 279, in exec_module
File "calibre/ebooks/oeb/polish/check/css.py", line 12, in <module>
ImportError: cannot import name 'QWebEnginePage' from 'qt.webengine' (/opt/calibre/lib/calibre-extensions/python-lib.bypy.frozen/qt/webengine.pyc)

Setting up desktop integration...
Creating un-installer: /usr/bin/calibre-uninstall


There were 1 warnings

* Setting up completion failed with error:

[kovidgoyal]

Your OS is too old, update or stay with calibre 7.15 until you can.

[mischl]

Hello kovi

If have just upgraded my openSuSE 15.5 to the latest 15.6, because of the outdated glib.
Now i don´t get the error message from before, but instead this new one

[kovidgoyal]

That error means the version of freetype on your system is too old, it lacks support for colrv1 fonts wich chromium and hence qt webengine require. So as I said stick with calibre 7.15 until you can update your system.