I cloned the mentioned repo and want to continue with the next step "npm install". Unfortunately the NPM repo seems to be outdated because a package is missing.
npm ERR! Linux 4.15.0-60-generic
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "install"
npm ERR! node v8.10.0
npm ERR! npm v3.5.2
npm ERR! code E404
npm ERR! 404 Not found : @nuxeo/page
npm ERR! 404
npm ERR! 404 '@nuxeo/page' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
npm ERR! 404 It was specified as a dependency of '@nuxeo/nuxeo-web-ui'
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.
What I am missing?