You are about to publish a box on Vagrant Cloud with the following options: archlinux/archlinux: (vv2020.09.27) for provider 'libvirt' Automatic Release: true ==> cloud: Creating a box entry... ==> cloud: Box already exists, updating instead... ==> cloud: Creating a version entry... Failed to create box archlinux/archlinux Invalid version given: v2020.09.27 ERROR: Job failed: exit code 1