VNC server initialization "Host not found, failed to pre-init udev" error

I am trying to set up VNC connection for my iSh (v. 1.2.2) following the instructions at [Running-a-VNC-Server](https://github.com/ish-app/ish/wiki/Running-a-VNC-Server)
I believe I followed them carefully, but startx gives an error:
"hostname: Adams-iPad: Host not found
[config] failed to pre-init udev"

Btw, udevadm monitor gives error: "unable to create netlink socket"
dmesg shows one line only: "40 stub syscall 375"

How can I fix that?

Start with the Running-a-VNC-Server wiki instructions and reproduce the failure at startx. Check the reported hostname error, the udevadm netlink-socket failure, and the dmesg stub-syscall output; done means identifying a supported fix or documenting that this setup is unavailable.

Written by the indexing model from the issue text.