Cannot mix incompatible Qt library (6.4.1) with this library

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gusarg Registered Member Posts 12 Karma 0	Cannot mix incompatible Qt library (6.4.1) with this library Sat Jan 14, 2023 2:58 am Hi, I can't run many apps (like OBS, Strawberry Player, etc), since latest KDE Neon updates. Example: obs debug: Found portal inhibitor debug: Attempted path: share/obs/obs-studio/locale/en-US.ini debug: Attempted path: /usr/share/obs/obs-studio/locale/en-US.ini debug: Attempted path: share/obs/obs-studio/locale.ini debug: Attempted path: /usr/share/obs/obs-studio/locale.ini debug: Attempted path: share/obs/obs-studio/locale/es-ES.ini debug: Attempted path: /usr/share/obs/obs-studio/locale/es-ES.ini info: Using preferred locale 'es-ES' debug: Attempted path: share/obs/obs-studio/themes/Yami.qss debug: Attempted path: /usr/share/obs/obs-studio/themes/Yami.qss info: Using EGL/X11 info: CPU Name: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz info: CPU Speed: 1599.462MHz info: Physical Cores: 2, Logical Cores: 4 info: Physical Memory: 15765MB Total, 10923MB Free info: Kernel Version: Linux 5.15.0-58-generic info: Distribution: "KDE neon" "22.04" info: Session Type: x11 info: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.21.1 info: Qt Version: 6.4.2 (runtime), 6.2.4 (compiled) info: Portable mode: false Cannot mix incompatible Qt library (6.4.1) with this library (6.4.2) How can I fix this? Thanks.
gfielding Registered Member Posts 178 Karma 0 OS	Re: Cannot mix incompatible Qt library (6.4.1) with this lib Sat Jan 14, 2023 10:49 am Have you tried updating with the commands: pkcon refresh pkcon update
gusarg Registered Member Posts 12 Karma 0	Re: Cannot mix incompatible Qt library (6.4.1) with this lib Sat Jan 14, 2023 11:52 am Nope, that does not update or modify ant Qt package version.
gfielding Registered Member Posts 178 Karma 0 OS	Re: Cannot mix incompatible Qt library (6.4.1) with this lib Sat Jan 14, 2023 12:10 pm My neon system has qt 6.4.2 and works fine with strawberry. Do you have another package installer system (for example muon or synaptic) installed? It might be worth checking the individual qt packages in that to find the problem library.
claydoh Registered Member Posts 1170 Karma 9 OS	Re: Cannot mix incompatible Qt library (6.4.1) with this lib Sat Jan 14, 2023 1:05 pm Cannot mix incompatible Qt library (6.4.1) with this library (6.4.2) This pretty much explains things. neon is more up to date, and the Qt version used to build these applications from third party repos (PPAs) is older than what is on neon systems. Which specific package or library is actually causing this, I don't know. The fix, for the moment, is to use Flatpak, appimage etc. There is no way for a PPA to use newer Qt libraries to build the binaries - it would break for everyone else NOT using neon. EDIT it does look like there are a mix of 6.41 and 6.4.2 Qt6 packages installed, on my system at least, so there are packages that seem to be missing updates. it seems. Time to pester some devs https://bugs.kde.org/show_bug.cgi?id=464272 I have no issue with Strawberry. The latest version from their PPA updated last night runs just fine for me. Another third-party Qt application I have also seems to run fine, but this may be that it isn't using the same libraries that OBS is. claydoh, proud to be a member of KDE forums since 2008-Oct, and KDE user since 2001
claydoh Registered Member Posts 1170 Karma 9 OS	Re: Cannot mix incompatible Qt library (6.4.1) with this lib Mon Jan 16, 2023 7:02 pm This should be fixed after today's updates. claydoh, proud to be a member of KDE forums since 2008-Oct, and KDE user since 2001
gusarg Registered Member Posts 12 Karma 0	Re: Cannot mix incompatible Qt library (6.4.1) with this lib Mon Jan 16, 2023 9:23 pm claydoh wrote:This should be fixed after today's updates. Hi, Yes, fixed!