by deleting the apt sources it has fallen back to the default debian install which is 8.11 - yuk... I would apt-get purge nodejs - then check that the /etc/apt/sources.list.d/ directory still does not contain nodesource.list, then run sudo apt-get update to refresh the sources. And then retry our install script.
Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
The OpenJS Foundation | Terms of Use | Privacy Policy | OpenJS Foundation Bylaws | Trademark Policy | Trademark List | Cookie Policy