Making a Non-working App Work

[amarok]

So, I tried to install ConvertAll, a unit conversion app. Didn’t launch, so I tried to launch in terminal:

purism@pureos:~$ convertall
qt.qpa.plugin: Could not find the Qt platform 
plugin "wayland" in ""
This application failed to start because no 
Qt platform plugin could be initialized. Reinstalling
 the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, 
minimal, minimalegl, offscreen, vnc, xcb.

Aborted
purism@pureos:~$ 

Is it as simple as installing one of these plugins to get the app working? If so, which?

[ruff]

$ QT_QPA_PLATFORM=xcb <command>

will run it with X plugin under Xwayland

[spacemanspiffy]

How to modify Qt to work with the Librem 5

You have three options: Use Flatpak. Qt included in KDE runtimes works well on the Librem 5. Run your app natively with QT_QPA_PLATFORM=xcb DISPLAY=:0 env vars to force X11 backend - Qt in amber-phone repos is too old and doesn’t work well with Wayland backend. Wait for the next PureOS release, Byzantium, which contains recent Qt in its repos already.

Edit; @ruff beat me to it

[amarok]

OK…
QT_QPA_PLATFORM=xcb DISPLAY=:0 convertall successfully launched the GUI. Thanks for the help!

Sounds like this step won’t be necessary when byzantium arrives on the L5, is that correct?

[ruff]

Dunno, i didn’t try yet any qt apps on my byz, and now when I tried i found it discharged, so put on a leash again.

[amarok]

In the meantime, I’ll just use Unitconverters.net as a Web App. It works well with the screen.