vlc doesn't work

[allowthere]

Issue description

vlc doesn't work. It outputs: Cannot mix incompatible Qt library (version 0x50b01) with this library (version 0x50b03)

Steps to reproduce

run vlc

Technical details

these paths will be fetched (0.05 MiB download, 0.28 MiB unpacked):
/nix/store/ial8a56ys2rswfq4j2abm3cl99li5b6p-bash-interactive-4.4-p23-dev
copying path '/nix/store/ial8a56ys2rswfq4j2abm3cl99li5b6p-bash-interactive-4.4-p23-dev' from 'https://cache.nixos.org'...

• system: "x86_64-linux"
• host os: Linux 4.14.105, NixOS, 18.09.2327.37694c8cc0e (Jellyfish)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.1.3
• channels(root): "nixos-18.09.2327.37694c8cc0e"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

[SmilingHorse]

same:

$ vlc
VLC media player 3.0.4 Vetinari (revision 3.0.4-0-gf615db6332)
[0000000001d225d0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
Cannot mix incompatible Qt library (version 0x50b01) with this library (version 0x50b03)
Aborted

cvlc works fine for both audio and video files though without the on-screen interface so you're limited to the keybindings for navigation: https://wiki.videolan.org/QtHotkeys/

[jtojnar]

Duplicate of #55994, #30551, #37864 and others

Make sure you are not mixing different versions of Qt in your apps installed through configuration.nix and nix-env.

[SmilingHorse]

yeah a nix-env --upgrade did the trick. thanks!