https://bugs.kde.org/show_bug.cgi?id=497963
Bug ID: 497963
Summary: AppImage fails to run with "dlopen(): error loading
libfuse.so.2"
Classification: Applications
Product: krita
Version: 5.2.6
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: General
Assignee: krita-bugs-n...@kde.org
Reporter: yavn.w...@gmail.com
Target Milestone: ---
This is an issue with Linux distributions that ship with fuse3 instead of
fuse2. For example, Ubuntu 24.04. If the Krita appimage is executed on such a
system, it will fail with the message:
dlopen(): error loading libfuse.so.2
AppImages require FUSE to run.
You might still be able to extract the contents of this AppImage
if you run it with the --appimage-extract option.
See https://github.com/AppImage/AppImageKit/wiki/FUSE
for more information
However, I would consider this a bug for two reasons:
1. FUSE is already installed, just not the version Krita needs
2. For less experienced users, this is completely opaque and the symptom is
"Krita doesn't run".
3. If the appimage is executed from the Desktop, there's zero indication what's
wrong, the app just does not run.
See this tread for an example:
https://krita-artists.org/t/can-not-install-krita-on-ubuntu/110345
It seems AppImage can be built in a way that does not depend on runtime
dependency. I found this issue addressing this problem:
https://github.com/AppImage/AppImageKit/issues/1120
Ideally, the AppImage should be compatible with old and new distros that use
either version of FUSE.
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