Cannot load library widgetsboxmodel.so : undefined symbol

[Sams213]

Source

AUR

App logs

21:28:24 [debg:albert]        Albert version: 34.0.5
21:28:24 [debg:albert]            Build date: Feb  9 2026 00:55:52
21:28:24 [debg:albert]            Qt version: 6.10.1
21:28:24 [debg:albert]             Build ABI: x86_64-little_endian-lp64
21:28:24 [debg:albert]    Build architecture: x86_64
21:28:24 [debg:albert]      CPU architecture: x86_64
21:28:24 [debg:albert]           Kernel type: linux
21:28:24 [debg:albert]        Kernel version: 6.18.6-arch1-1
21:28:24 [debg:albert]                    OS: Arch Linux
21:28:24 [debg:albert]               OS type: arch
21:28:24 [debg:albert]            OS version: unknown
21:28:24 [debg:albert]         Platform name: wayland
21:28:24 [debg:albert]            Style name: breeze
21:28:24 [debg:albert]      Available styles: Breeze, Oxygen, Windows, Fusion
21:28:24 [debg:albert]            Icon theme: breeze
21:28:24 [debg:albert]                  Font: JetBrainsMono Nerd Font,10,-1,5,400,0,0,0,0,0,0,0,0,0,0,1
21:28:24 [debg:albert]              Language: English
21:28:24 [debg:albert]                Locale: en_US
21:28:24 [debg:albert]          Ui languages: en-Latn-US, en-US, en-Latn, en
21:28:24 [debg:albert]       Binary location: /usr/bin/albert
21:28:24 [debg:albert]           Working dir: /home/samib
21:28:24 [debg:albert]             Arguments: albert
21:28:24 [debg:albert] ENVIRONMENT:
21:28:24 [debg:albert]             COLORTERM: truecolor
21:28:24 [debg:albert] DBUS_SESSION_BUS_ADDRESS: unix:path=/run/user/1000/bus
21:28:24 [debg:albert]       DEBUGINFOD_URLS: https://debuginfod.archlinux.org 
21:28:24 [debg:albert]       DESKTOP_SESSION: plasma
21:28:24 [debg:albert]               DISPLAY: :1
21:28:24 [debg:albert]                EDITOR: /usr/bin/nvim
21:28:24 [debg:albert]         GTK2_RC_FILES: /etc/gtk-2.0/gtkrc:/home/samib/.gtkrc-2.0:/home/samib/.config/gtkrc-2.0
21:28:24 [debg:albert]          GTK_RC_FILES: /etc/gtk/gtkrc:/home/samib/.gtkrc:/home/samib/.config/gtkrc
21:28:24 [debg:albert]                  HOME: /home/samib
21:28:24 [debg:albert]          ICEAUTHORITY: /run/user/1000/iceauth_HwRQqh
21:28:24 [debg:albert]         INVOCATION_ID: b7ad75cc81854457a59fe7e45a9fcb88
21:28:24 [debg:albert]        JOURNAL_STREAM: 9:22197
21:28:24 [debg:albert] KDE_APPLICATIONS_AS_SCOPE: 1
21:28:24 [debg:albert]      KDE_FULL_SESSION: true
21:28:24 [debg:albert]       KDE_SESSION_UID: 1000
21:28:24 [debg:albert]   KDE_SESSION_VERSION: 6
21:28:24 [debg:albert] KITTY_INSTALLATION_DIR: /usr/lib/kitty
21:28:24 [debg:albert]             KITTY_PID: 1641
21:28:24 [debg:albert]      KITTY_PUBLIC_KEY: 1:m=s<cT-fO+aLhzG@&mxV8V)m58Dz#q4&cNiXg}?0
21:28:24 [debg:albert]       KITTY_WINDOW_ID: 1
21:28:24 [debg:albert]                  LANG: en_US.UTF-8
21:28:24 [debg:albert]               LOGNAME: samib
21:28:24 [debg:albert]                  MAIL: /var/spool/mail/samib
21:28:24 [debg:albert]            MANAGERPID: 828
21:28:24 [debg:albert]        MANAGERPIDFDID: 829
21:28:24 [debg:albert] MEMORY_PRESSURE_WATCH: /sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/session.slice/plasma-plasmashell.service/memory.pressure
21:28:24 [debg:albert] MEMORY_PRESSURE_WRITE: c29tZSAyMDAwMDAgMjAwMDAwMAA=
21:28:24 [debg:albert]            MOTD_SHOWN: pam
21:28:24 [debg:albert]    PAM_KWALLET5_LOGIN: /run/user/1000/kwallet5.socket
21:28:24 [debg:albert]                  PATH: /usr/local/sbin:/usr/local/bin:/usr/bin:/var/lib/flatpak/exports/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
21:28:24 [debg:albert]                   PWD: /home/samib
21:28:24 [debg:albert]      QT_LOGGING_RULES: albert*=true
21:28:24 [debg:albert]  QT_WAYLAND_RECONNECT: 1
21:28:24 [debg:albert]       SESSION_MANAGER: local/lenovoyoga:@/tmp/.ICE-unix/1117,unix/lenovoyoga:/tmp/.ICE-unix/1117
21:28:24 [debg:albert]                 SHELL: /usr/bin/bash
21:28:24 [debg:albert]                 SHLVL: 1
21:28:24 [debg:albert]  STARSHIP_SESSION_KEY: 8782231043094217
21:28:24 [debg:albert]        STARSHIP_SHELL: fish
21:28:24 [debg:albert]           SUDO_EDITOR: /usr/bin/nvim
21:28:24 [debg:albert]      SYSTEMD_EXEC_PID: 1167
21:28:24 [debg:albert]                  TERM: xterm-kitty
21:28:24 [debg:albert]              TERMINFO: /usr/lib/kitty/terminfo
21:28:24 [debg:albert]                  USER: samib
21:28:24 [debg:albert]                VISUAL: /usr/bin/nvim
21:28:24 [debg:albert]       WAYLAND_DISPLAY: wayland-0
21:28:24 [debg:albert]            XAUTHORITY: /run/user/1000/xauth_nhFxjc
21:28:24 [debg:albert]       XDG_CONFIG_DIRS: /home/samib/.config/kdedefaults:/etc/xdg
21:28:24 [debg:albert]   XDG_CURRENT_DESKTOP: KDE
21:28:24 [debg:albert]         XDG_DATA_DIRS: /home/samib/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share
21:28:24 [debg:albert]       XDG_MENU_PREFIX: plasma-
21:28:24 [debg:albert]       XDG_RUNTIME_DIR: /run/user/1000
21:28:24 [debg:albert]              XDG_SEAT: seat0
21:28:24 [debg:albert]         XDG_SEAT_PATH: /org/freedesktop/DisplayManager/Seat0
21:28:24 [debg:albert]     XDG_SESSION_CLASS: user
21:28:24 [debg:albert]   XDG_SESSION_DESKTOP: KDE
21:28:24 [debg:albert]        XDG_SESSION_ID: 2
21:28:24 [debg:albert]      XDG_SESSION_PATH: /org/freedesktop/DisplayManager/Session1
21:28:24 [debg:albert]      XDG_SESSION_TYPE: wayland
21:28:24 [debg:albert]              XDG_VTNR: 1
21:28:24 [debg:albert]    XKB_DEFAULT_LAYOUT: fr
21:28:24 [debg:albert]     XKB_DEFAULT_MODEL: pc105
21:28:24 [debg:albert]   XKB_DEFAULT_OPTIONS: terminate:ctrl_alt_bksp
21:28:24 [debg:albert] _JAVA_AWT_WM_NONREPARENTING: 1
21:28:24 [debg:albert] Loading translations
21:28:24 [debg:albert]  - /usr/share/qt6/translations/qtbase_en.qm
21:28:24 [debg:albert]  - :/i18n/albert_en.qm
21:28:24 [debg:albert] Theme search paths: QList(/home/samib/.local/share/icons, /var/lib/flatpak/exports/share/icons, /usr/share/icons, :/icons)
21:28:24 [debg:albert] Checking for a running instance…
21:28:24 [crit:albert] Albert has not been terminated properly. Please check your logs and report an issue.
21:28:24 [debg:albert] Creating local server /home/samib/.cache/albert/ipc_socket
21:28:24 [debg:albert] Effective PATH:  /usr/local/sbin:/usr/local/bin:/usr/bin:/var/lib/flatpak/exports/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
21:28:24 [info:albert] Searching native plugins in /usr/lib/albert
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/hash.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/docs.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/chromium.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/timezones.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/files.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/github.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/mediaremote.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/timer.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/ssh.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/urlhandler.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/vpn.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/datetime.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/python.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/bluetooth.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/calculator_qalculate.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/application.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/system.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/clipboard.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/spotify.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/commandline.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/websearch.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/homebrew.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/widgetsboxmodel.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/snippets.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/obsidian.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/applications.so
21:28:24 [debg:albert] Found valid native plugin /usr/lib/albert/caffeine.so
21:28:24 [debg:albert] Connecting usage database…
21:28:24 [debg:albert] Initializing usage database…
21:28:24 [debg:albert] Fetching usage scores…
21:28:24 [debg:albert] Try loading the configured frontend 'widgetsboxmodel'.
21:28:24 [debg:albert] Cannot load library /usr/lib/albert/widgetsboxmodel.so: /usr/lib/libQt6StateMachine.so.6: undefined symbol: _ZN14QObjectPrivateC2E16QtPrivate_6_10_2, version Qt_6_PRIVATE_API
21:28:24 [warn:qt.core.qobject.connect] QObject::connect(albert::PluginInstance, QEventLoop): invalid nullptr parameter
fish: Job 1, 'QT_LOGGING_RULES='albert*=true'…' terminated by signal SIGSEGV (Address boundary error)

Current Behavior

i installed albert, and when i start it, it throws a segfault, i think it may be on the plugins loadling
21:28:24 [debg:albert] Cannot load library /usr/lib/albert/widgetsboxmodel.so: /usr/lib/libQt6StateMachine.so.6: undefined symbol: _ZN14QObjectPrivateC2E16QtPrivate_6_10_2, version Qt_6_PRIVATE_API
21:28:24 [warn:qt.core.qobject.connect] QObject::connect(albert::PluginInstance, QEventLoop): invalid nullptr parameter
fish: Job 1, 'QT_LOGGING_RULES='albert*=true'…' terminated by signal SIGSEGV (Address boundary error)

Expected Behavior

it should start and not crash

Anything else?

No response

[ManuelSchneid3r]

My experience shows that a lot of Arch users dont understand how AUR is supposed to be used.

Please try the official builds for Arch hosted at OBS. You can find the instructions here.

If you still encounter this kind of issues please report back.