install: target '/usr/lib/systemd/system/' is not a directory: No such file or directory

[etihwnad]

This was observed on

pi@whiff:~/rtl433-mqtt$ lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 10 (buster)
Release:        10
Codename:       buster

When does this directory exist? Does the script need to mkdir -p?