ERROR: "xauth: unable to rename authority file /tmp/.docker.xauth, use /tmp/.docker.xauth-n"

[caozx1110]

Firstly, I have run the docker container successfully(--focal-nogpu). Tonight, when I up the container, the ubuntu system report an unknown error and the Gazebo UI didn't show up. Then I rerun the container, use the ./docker_run.sh --focal-nogpu order, but it report an error:

xauth: unable to rename authority file /tmp/.docker.xauth, use /tmp/.docker.xauth-n

and again the Gazebo UI disappear. I cannot find out the solution, so may I ask for your help? Thanks a lot !

[lmark1]

Hi @caozx1110,

Just to confirm, were you able to successfully run the simulation using Docker at some point ?

How did you start the container the second time? Generally you want to use the ./docker_run.sh only once to create the container and use the following commands when you want to start it again:

docker start icuas22_competition_[[DISTRO]]
docker attach icuas22_competition_[[DISTRO]]

where [[DISTRO]] can be either bionic, focal or focal-nogpu.

If this does not solve your issue please try removing the container, rebuilding the image and rerunning the container.

If this does not solve your issue please post terminal screenshots.

[caozx1110]

Hi @lmark1 It is a weird thing when I turn on the PC today, it can work successfully.

For this:

How did you start the container the second time? Generally you want to use the ./docker_run.sh only once to create the container and use the following commands when you want to start it again:

In fact, I used the docker start and docker exec to start the existing container.

Yesterday I have tried to rerun container and rerun, even rebuild the image. And I have tried reboot the PC, too !!!

this is the screenshot with error.

Anyway it can work now.

Thank you very much for your help! :+1: