nvidia-docker: command not found

[caixxuan]

cai@cai:/mnt/mydisk/pylot-master$ ./scripts/install-nvidia-docker.sh
...
Reading package lists... Done
Building dependency tree
Reading state information... Done
nvidia-docker2 is already the newest version (2.14.0-1).
0 upgraded, 0 newly installed, 0 to remove and 94 not upgraded.

cai@cai:/mnt/mydisk/pylot-master$ nvidia-docker run -itd --name pylot -p 20022:22 erdosproject/pylot /bin/bash
nvidia-docker: command not found

Even execute ./scripts/install-nvidia-docker.sh, why "nvidia-docker: command not found"?

[caixxuan]

cai@cai:/mnt/mydisk/pylot-master$ docker exec -i -t pylot /home/erdos/workspace/pylot/scripts/run_simulator.sh
4.24.3-0+++UE4+Release-4.24 518 0
Disabling core dumps.
sh: 1: xdg-user-dir: not found
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5220:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM default
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5220:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM default
what if using docker not nvidia-docker, it seems something wrong exist?

[caixxuan]

cai@cai:/mnt/mydisk/pylot-master$ ssh -p 20022 -X erdos@localhost
Welcome to Ubuntu 20.04.3 LTS (GNU/Linux 5.15.0-91-generic x86_64)

• Documentation: https://help.ubuntu.com
• Management: https://landscape.canonical.com
• Support: https://ubuntu.com/advantage

This system has been minimized by removing packages and content that are
not required on a system that users do not log into.

To restore this content, you can run the 'unminimize' command.

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

/usr/bin/xauth: file /home/erdos/.Xauthority does not exist

Is this wrong? how to fix?

[caixxuan]

it is always black after last config step