Linux: Unable to install

[nekromoff]

E: The repository 'http://ppa.launchpad.net/developmentseed/mapbox/ubuntu artful Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

[csytsma]

Can you provide a bit more context, what are you doing, where is it happening?

[7tonin]

I can see a very close message from a server (ubuntu-18.04.2-live-server-amd64) when running the installer for ubuntu (http://tilemill.s3.amazonaws.com/latest/install-tilemill.tar.gz). In fact the following command:

pkexec /bin/bash -c "apt-get install --yes python-software-properties &&
    yes | apt-add-repository ppa:developmentseed/mapbox &&
    apt-get update --yes &&
    apt-get install --yes tilemill"

On ubuntu-18.04.2 did replace python-software-properties with software-properties-common. In first error line: E: artful Release is replaced by bionic Release

[7tonin]

Check the Ubuntu series available in filter, from Lucid to Trusty : MapBox PPA description https://launchpad.net/~developmentseed/+archive/ubuntu/mapbox Refine your choices. Maybe this can give a way out, with a VirtualBox https://github.com/tilemill-project/tilemill/issues/2684#issuecomment-468818822