[Bug]: Client AppImage does no start on Linux Mint 22, CE - path override failed for key base

[goebbe]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

Trying to connect my Nextcloud into my newly installed Desktop (Linux Mint 22 - CE), after
executing the AppImage, a placeholder of an icon is shortly shown in the system tray, but the
Nextcloud client does not start.

Running the file in the terminal provides the following error message:

$ ./Nextcloud-3.14.0-x86_64.AppImage 
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclrwHf73/usr/libexec/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclrwHf73/usr/libexec/qtwebengine_dictionaries'
[0916/082840.237222:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
[0916/082840.237216:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
Trace/breakpoint trap (core dumped)

Steps to reproduce

1. Install Linux Mint 22, Cinamon Edition
2. Donwload .AppImage of Nextcloud client from Nextcloud
3. Set the app image executeable and try to run the AppImage

Expected behavior

Nextcloud Client should start. :-)

A short search over the internet did not provide a workaround for me, as a user.
If there is a workaround/ missing package or anything else I could do, I would be glad for any recommendation.

Which files are affected by this bug

This is about installation - not a sync bug.

Operating system

Linux

Which version of the operating system you are running.

Linxu Mint 22 Cinammon Edition

Package

Official Linux AppImage

Nextcloud Server version

28.0.9

Nextcloud Desktop Client version

3.14.0-x86_64

Is this bug present after an update or on a fresh install?

Fresh desktop client install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

No response

Additional info

No response

[MatthaeusHarris]

This issue also appears on Linux Mint 21 (Vanessa).

This issue does not appear in v3.13.4. For those like me who found this after encountering the bug, the last known working version can be found here: https://github.com/nextcloud-releases/desktop/releases/download/v3.13.4/Nextcloud-3.13.4-x86_64.AppImage

[camilasan]

I do see these errors in the logs when running the appimage on Ubuntu 24.04, but the client still runs.
I am not sure the messages are related to the issue.
We are investigating it.

[rekcodocker]

On my machine (Linux Mint 22, LTS), it throws a coredump:

Failed to initialize instances shared memory:  "QSharedMemory::handle: doesn't exist"
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclRM8JWd/usr/libexec/qtwebengine_dictionaries'
[0921/232700.438874:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclRM8JWd/usr/libexec/qtwebengine_dictionaries'
[0921/232700.440778:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
Trace/breakpoint trap (core dumped)

PS command confirms there is no process by the name of 'nextcloud' after that.

[uscw]

a coredump also on opensuse leap 15.6:

uschwar1@npcscw:~> Downloads/Nextcloud-3.14.0-x86_64.AppImage 
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextcliXvjRk/usr/libexec/qtwebengine_dictionaries'
[0922/094852.717944:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextcliXvjRk/usr/libexec/qtwebengine_dictionaries'
[0922/094852.728853:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
Trace/Breakpoint ausgelöst (Speicherabzug geschrieben)

[Deewens]

Same on Fedora 40

/usr/bin/AppImageLauncher: /lib64/libcurl.so.4: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/appimagelauncher/libappimageupdate.so)
QSocketNotifier: Can only be used with threads started with QThread
qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_Nextclv2QmfB/usr/libexec/qtwebengine_dictionaries'
[0922/214904.688658:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_Nextclv2QmfB/usr/libexec/qtwebengine_dictionaries'
[0922/214904.689272:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file

[SpookOz]

Also on Debian Trixie:

Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclbBFOD1/usr/libexec/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclbBFOD1/usr/libexec/qtwebengine_dictionaries'
[0924/114019.672443:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
[0924/114019.672446:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file

[camilasan]

Fixed with #7167
You can try this build: https://cloud.nextcloud.com/s/McHcTm43sszwj7R - it is only for testing ⚠️