I trying to install in debian nodejs, I am following these steps how-to-install-node-js-on-ubuntu but when I run sudo bash nodesource_setup.sh the errors below showed for me, anyone help me to solve it ?
W: The repository 'http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu maverick Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://ppa.launchpad.net/videolan/stable-daily/ubuntu artful Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Falhou ao buscar http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu/dists/maverick/main/binary-amd64/Packages 403 Forbidden
E: Falhou ao buscar http://ppa.launchpad.net/videolan/stable-daily/ubuntu/dists/artful/main/binary-amd64/Packages 404 Not Found
E: Falhou o download de alguns ficheiros de índice. Foram ignorados ou os antigos foram usados em seu lugar.
Error executing command, exiting
This is not related to NodeJS's package in any way.
The real issue is stated:
The repository basically_all_your_repos does not have a Release file.
Your ppa entries are corrupted. Delete all ppa entries which throw errors and then run apt-get update. I'm guessing the installation fails at the beginning, when (sudo) apt-get update is issued. You can check out how to remove ppas here.
Try to use NVM to install node js and it helps to checkout different node versions in the same machine for different project.
Check this answer. I clearly listed the commands on how to install node js with NVM on linux.
来源：https://stackoverflow.com/questions/47251703/error-during-install-node-js-in-debian