Currently there are some bug fixes in the Carto code base which isn’t in the currently released Tile Mill which I was wanting to make use of. This is the commands that are needed in case someone else needs that info when running Tile Mill as an Ubuntu Service.
cd /usr/share/tilemill sudo npm install carto@latest
If that fails, read the error messages as some files may be in the way and npm isn’t wanting to overwrite them:
sudo rm /usr/share/tilemill/node_modules/.bin/mml2json.js sudo rm /usr/share/tilemill/node_modules/.bin/carto
You then also need to restart Tile Mill, which if you are using the Ubuntu service, you can use the following command.
sudo restart tilemill