[solved] Unable to install new QCAD version (3.29)

QCAD Professional QCAD Installation and Upgrades
1

Hello,
I can’t install version pro 3.29 on xubuntu 22.04
Here is the error message:

QCAD version 3.29.3
QScriptEngine: Must construct a Q(Core)Application before a QScriptEngine
./qcad : ligne 13 : 6453 Abandon (core dumped) QT_AUTO_SCREEN_SCALE_FACTOR=0 LD_LIBRARY_PATH=“$DIR” “$binary” “$@”
QCAD has unexpectedly quit.
Please use the offscreen or minimal platform plugin for headless systems
(without a running X11 server):
./qcad -platform offscreen
In addition, you might have to override the default Qt style
to prevent the loading of a native desktop style (such as GTK):
./qcad -style plastique

I tried with the different packages…
Thanks for your help!
Amélie

2

Hi,
Not a specialist on this matter … :wink:

Similar reports where usually solved by opting for Qt 5:

You probably need Wayland support

You can also test a fix based on a startup switch (Again Wayland related):

That is all that pops up recently.
Best is to wipe other failed trials … 3.29.4 is the latest release.

Regards,
CVH

3

Hello,
I succeed by deleting old configuration files as describe here : QCAD - Tutorial: Resetting the QCAD Configuration

Delete the file ~/.config/QCAD/QCAD3.conf
To reset the library browser, delete also the file ~/.config/QCAD/library_3_0_0_9.db
Start QCAD

Thanks a lot for your answer CVH!

Amélie

4

Hi,
Glad it worked out. :stuck_out_tongue:
Not that resetting the configuration was in my reply or that it should affect installing/updating.

So basically you solved it yourself.
Please edit the title of your initial post to reflect that by adding “[SOLVED]”

Regards,
CVH