marble virtual globe fails to start due to problem with Qt plugin

[xaverdh]

Issue description

I installed marble by putting the package into the "packages" section of my unprivileged user account, then tried to start marble, and got the following error:

This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".
Reinstalling the application may fix this problem.
fish: “marble-qt” terminated by signal SIGABRT (Abort)

Installing marble system wide by adding it to environment.systemPackages fixed the issue.

Steps to reproduce

Add marble to packages section of an (unprivileged) user, but not to systemPackages.
Start marble (from console in my case).

Technical details

Please run nix-shell -p nix-info --run "nix-info -m" and paste the
results.

• system: "x86_64-linux"
• host os: Linux 4.14.0, NixOS, 18.03pre120540.b8f7027360 (Impala)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 1.11.15
• channels(root): "nixos-18.03pre120540.b8f7027360"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs

[orivej]

I'm sorry that you have encountered this problem, you can find the description of the cause and some workarounds at the end of #30551, subscribe to that issue to be notified of the solution.