Steam crashing on launch

[ohno1052]

Steam crashing on launch

[Constancies]

I'm having a similar issue.

Logs:

flatpak run com.valvesoftware.Steam
INFO:root:https://github.com/flathub/com.valvesoftware.Steam/wiki
ERROR:root:~/.steam/root isn't a symlink to an existing directory, cannot determine current prefix
INFO:root:Will set XDG dirs prefix to /home/constancies/.var/app/com.valvesoftware.Steam
Traceback (most recent call last):
  File "/app/bin/steam", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/app/lib/python3.11/site-packages/steam_wrapper.py", line 486, in main
    should_restart = migrate_config(current_info, xdg_dirs_prefix)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/lib/python3.11/site-packages/steam_wrapper.py", line 316, in migrate_config
    ignore = _get_host_xdg_mounts("xdg-config", flatpak_info)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/lib/python3.11/site-packages/steam_wrapper.py", line 305, in _get_host_xdg_mounts
    dirs.add(os.path.join(*path_seq[1:]))
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: join() missing 1 required positional argument: 'a'

[jntesteves]

@Constancies I think you found a bug, yes. From what I understand from the code where you hit this error, it's only possible to reach this part if you have the permission --filesystem=xdg-config, sharing the entire xdg-config without specifying a subdirectory like xdg-config/MangoHud:ro, etc. That is giving up security excessively and currently not supported (at least not until this bug is fixed). This is a different bug from OP, please file a new issue for it.

About OP, I took a quick look, but I'm not sure yet if it's a bug in the wrapper script or a problem in your setup why the resource is busy. Needs further investigation.