RStudio "failed to start because no Qt platform plugin could be initialized"

[8573]

I have installed RStudio on NixOS via environment.systemPackages. When I try to start it, it fails with an error message:

$ rstudio
qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

[1]    2573 abort (core dumped)  rstudio
$ echo $QT_PLUGIN_PATH
/home/c74d/.nix-profile/lib/qt4/plugins:/home/c74d/.nix-profile/lib/kde4/plugins:/etc/profiles/per-user/c74d/lib/qt4/plugins:/etc/profiles/per-user/c74d/lib/kde4/plugins:/nix/var/nix/profiles/default/lib/qt4/plugins:/nix/var/nix/profiles/default/lib/kde4/plugins:/run/current-system/sw/lib/qt4/plugins:/run/current-system/sw/lib/kde4/plugins

RStudio worked fine for me on NixOS in 2018, when it would build at all. Rebooting my computer doesn't fix the problem, so I doubt it's a transient problem with my desktop session.

I note that this is the same error message from #33702, #48826, and #54872, but my issue involves RStudio installed via environment.systemPackages rather than run via nix-shell as in those issues.

Metadata

• system: "x86_64-linux"
• host os: Linux 4.19.84-hardened, NixOS, 20.03pre202088.e89b21504f3 (Markhor)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.1
• channels(root): "nixos-20.03pre202088.e89b21504f3"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

[worldofpeace]

see #65399