• Support

  • Cannot mix incompatible Qt library (5.15.2) with this library (5.15.3)

Dear Devs!

Most of my daily used app cannot run because the Qt library incompatible. Can you help me? I cannot solve it after 2 hours. 🙁

    Qt FATAL: Cannot mix incompatible Qt library (5.15.2) with this library (5.15.3)
    Aborted (core dumped)

These apps doesn't work: Virtualbox, CopyQ.

Tons of thanks for you help!

Maybe this is the problem:

> ls -l /usr/lib/libQt*
  ...
lrwxrwxrwx 1 root root        23 Jun 24 11:48 /usr/lib/libQt5Widgets.so.5 -> libQt5Widgets.so.5.15.3
lrwxrwxrwx 1 root root        23 Jun 24 11:48 /usr/lib/libQt5Widgets.so.5.15 -> libQt5Widgets.so.5.15.3
-rwxr-xr-x 1 root root   6863176 Feb  8 14:21 /usr/lib/libQt5Widgets.so.5.15.2
-rwxr-xr-x 1 root root   7006624 Jun 17 00:12 /usr/lib/libQt5Widgets.so.5.15.3
-rw-r--r-- 1 root root      1342 Apr 24 14:51 /usr/lib/libQt5X11Extras.prl
lrwxrwxrwx 1 root root        25 Jun 24 11:48 /usr/lib/libQt5X11Extras.so.5 -> libQt5X11Extras.so.5.15.3
lrwxrwxrwx 1 root root        25 Jun 24 11:48 /usr/lib/libQt5X11Extras.so.5.15 -> libQt5X11Extras.so.5.15.3
-rwxr-xr-x 1 root root     22616 Feb  8 14:54 /usr/lib/libQt5X11Extras.so.5.15.2
-rwxr-xr-x 1 root root     22616 Apr 24 14:51 /usr/lib/libQt5X11Extras.so.5.15.3
-rw-r--r-- 1 root root      2593 Jun 17 00:12 /usr/lib/libQt5XcbQpa.prl
lrwxrwxrwx 1 root root        22 Jun 24 11:48 /usr/lib/libQt5XcbQpa.so.5 -> libQt5XcbQpa.so.5.15.3
lrwxrwxrwx 1 root root        22 Jun 24 11:48 /usr/lib/libQt5XcbQpa.so.5.15 -> libQt5XcbQpa.so.5.15.3
-rwxr-xr-x 1 root root   1258008 Feb  8 14:21 /usr/lib/libQt5XcbQpa.so.5.15.2
-rwxr-xr-x 1 root root   1344112 Jun 17 00:12 /usr/lib/libQt5XcbQpa.so.5.15.3
-rw-r--r-- 1 root root      1243 Jun 17 00:12 /usr/lib/libQt5XkbCommonSupport.prl
-rw-r--r-- 1 root root      1153 Jun 17 00:12 /usr/lib/libQt5Xml.prl
lrwxrwxrwx 1 root root        19 Jun 24 11:48 /usr/lib/libQt5Xml.so.5 -> libQt5Xml.so.5.15.3
lrwxrwxrwx 1 root root        19 Jun 24 11:48 /usr/lib/libQt5Xml.so.5.15 -> libQt5Xml.so.5.15.3
-rwxr-xr-x 1 root root    272544 Feb  8 14:21 /usr/lib/libQt5Xml.so.5.15.2
-rwxr-xr-x 1 root root    276728 Jun 17 00:12 /usr/lib/libQt5Xml.so.5.15.3
...

Rolling back in history doesn't solve the problem, because when i try to install virtualbox again then it download the package.

I would make sure you are fully up to date and have rebooted since. qt5-base saw an upgrade back in May and VirtualBox has been updated and rebuilt several times since then. You shouldn't have those 5.15.2 shared object files, they should only be 5.15.3.

Regardless, it is seeing another rebuild today against the new 5.12.13 kernel.

Will take a look at copyq though.

I upgraded everything. As far as i know i never missed updated yet. I am trying to keep up to date my system. I already restarted my system, but i do it again. 🙂

What If i remove those 5.15.2 libs? I really afraid of do that. 😃

I am really sorry for the duplicate, I found this forum after reddit. 🙂

I restarted the system, everything is up to data. Can I somehow purge/clean those old libs?

    I tried it, but it's still said incompatible. I tried to check broken packages too. And there isn't any. 🙁

      bycym Maybe there is a problem with your system database.
      How many packages are installed in your system?
      Get this info by running eopkg li | wc -l

        i tried to rebuild the database, after a rollback and before a rollback but nothing. 🙁
        374 packages

          have you ever build your own QT package? because we do not ship pacakges with 5.15.2 anymore

          nope, i am using only your packages. (only discord came from snap as far as i know)

          bycym Normally you should have 800-900 packages installed. So you have over 400 packages that your system doesn't recognize as installed, and it will never update them. At this point if you don't have any important stuff in your PC, I think if a faster way to reinstall the system than trying to fix this issue.

            Is it possible the package manager somehow doesn't removed the previous library? or something like that? I tried tons of distro, and i really fell in love with your work. Last time i came from Ubuntu because they release from nowhere a new kernel and the virtualbox and my nvidia driver died. So you are my last hope. The last step will be windows, and i don't like to. 😃 Please help me

            oh only reinstall could help? Because i've got a dual boot, and to create that was so much work.

              I really like to switch to dwm or anything, but this tool is amazing.

                bycym Ok, try this sudo eopkg it --reinstall -c desktop.gnome.core