Hello everyone,
I'm starting out with Oracle JET and I've already encountered an issue while installing JET, so I'll leave the problem and the solution here for anyone running into it to find.
Problem:
NPM is not supported on the latest version of Node, as of this writing LTS is 8.11.3 and latest is 10.7.0. NPM v5 does not upgrade itself to v6 on Node version 9 and above.
Solution:
Run npm uninstall -g npm and then run npm install -g npm@6.2, 6.2 being the latest version of NPM as of this writing.
You can then install JET with the npm install -g @oracle/ojet-cli command as usual.
Hope this will cut somebody a couple of hours of googling around.
Cheers!