appImage crashes - qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""

[matejmosko]

Affected: Ubuntu 25.10 and 24.04 on wayland

When starting appImage version of subtivals, it crashes on 24.04 and 25.10 with wayland. In terminal I see the error regarding missing plugin wayland. As fas as I understand qt is bundled in your appImage. But I may be wrong. My own qt has wayland plugin installed. Below the errors:

Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
Configuration location: "/home/gnaag/.config/Subtivals/Subtivals.ini"
qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
No translations found for "sk_SK" in /usr/share/subtivals/translations
SSL stack: "OpenSSL 3.5.3 16 Sep 2025"
The X11 connection broke: Unsupported extension used (code 2)
XIO: fatal IO error 2 (Adresár alebo súbor neexistuje) on X server ":0"
after 209 requests (6 known processed) with 0 events remaining.
QThreadStorage: entry 2 destroyed before end of thread 0x5f0bcddcc020
QThreadStorage: entry 1 destroyed before end of thread 0x5f0bcddcc020

[leplatrem]

I could not reproduce this:

$ wget https://github.com/Subtivals/subtivals/releases/download/2.0.0-pre9/subtivals-2.0.0-pre9.AppImage
$ chmod +x subtivals-2.0.0-pre9.AppImage
$ ./subtivals-2.0.0-pre9.AppImage

works and opens a window.

However, I run into #374 and the main window has no decoration 🙄 (no title bar)

[matejmosko]

With subtivals-2.0.0-pre9.AppImage I can succesfully start the app. With previous versions (pre8 and prior) the app crashes before startup with:

Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
Configuration location: "/home/gnaag/.config/Subtivals/Subtivals.ini"
qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
No translations found for "sk_SK" in /usr/share/subtivals/translations
SSL stack:  "OpenSSL 3.5.3 16 Sep 2025"
The X11 connection broke: Unsupported extension used (code 2)
XIO:  fatal IO error 2 (Adresár alebo súbor neexistuje) on X server ":0"
      after 209 requests (6 known processed) with 0 events remaining.
QThreadStorage: entry 2 destroyed before end of thread 0x60961c950020
QThreadStorage: entry 1 destroyed before end of thread 0x60961c950020

With pre9 the titlebar is missing as you have already mentioned and the bar with subtitles cannot be moved here as well (#374 )