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

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amelie
Registered Member
Posts: 2
Joined: Fri Feb 09, 2024 3:48 pm

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

Post by amelie » Fri Feb 09, 2024 3:54 pm

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

CVH
Premier Member
Posts: 3480
Joined: Wed Sep 27, 2017 4:17 pm

Re: Unable to install new QCAD version (3.29)

Post by CVH » Fri Feb 09, 2024 7:40 pm

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

Similar reports where usually solved by opting for Qt 5:
https://www.qcad.org/rsforum/viewtopic. ... 473#p42471
You probably need Wayland support

You can also test a fix based on a startup switch (Again Wayland related):
https://www.qcad.org/rsforum/viewtopic. ... 467#p43468

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

Regards,
CVH

amelie
Registered Member
Posts: 2
Joined: Fri Feb 09, 2024 3:48 pm

Re: Unable to install new QCAD version (3.29)

Post by amelie » Fri Feb 16, 2024 3:30 pm

Hello,
I succeed by deleting old configuration files as describe here : https://qcad.org/en/tutorial-resetting- ... ion#Linux
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

CVH
Premier Member
Posts: 3480
Joined: Wed Sep 27, 2017 4:17 pm

Re: Unable to install new QCAD version (3.29)

Post by CVH » Fri Feb 16, 2024 3:46 pm

Hi,
Glad it worked out. :P
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

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