Confirming. If one tries rebooting the computer/VM, it may result in total failure, due to NetworkManager failing to start.
Temporary workaround as advised on the Net (works for Ubuntu 18.04.3, x86 64bit):
$ wget http://mirrors.kernel.org/ubuntu/pool/main/libi/libidn2/libidn2-0_2.0.4-1.1build2_amd64.deb $ sudo dpkg -i libidn2-0_2.0.4-1.1build2_amd64.deb $ sudo apt-mark hold libidn2-0
Confirming. If one tries rebooting the computer/VM, it may result in total failure, due to NetworkManager failing to start.
Temporary workaround as advised on the Net (works for Ubuntu 18.04.3, x86 64bit):
$ wget http:// mirrors. kernel. org/ubuntu/ pool/main/ libi/libidn2/ libidn2- 0_2.0.4- 1.1build2_ amd64.deb 0_2.0.4- 1.1build2_ amd64.deb
$ sudo dpkg -i libidn2-
$ sudo apt-mark hold libidn2-0