I’m still waiting for the developer sharing back.
In the meantime please try the below steps (from “Uninstall Steps for Local Repo Debian Packages” section of Debian Package Installation Guide) before installing DRIVE OS 6.0.4 with SDK Manager.
$ sudo -E apt-get -y --purge remove nv-driveos*
$ sudo apt-get -y autoremove
$ sudo rm -rf $NV_WORKSPACE