npm install @angular/core
npm ERR! Linux 3.10.0-514.2.2.el7.x86_64
npm ERR! argv "/usr/bin/node" "/bin/npm" "install" "@angular/core"
npm ERR! node v6.9.1
npm ERR! npm  v3.10.8
npm ERR! code E401

npm ERR! Registry returned 401 for GET on https://artifactory.mycompany.com/artifactory/api/npm/npmrepo/@angular%2fcore
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:
npm ERR!     /root/npm-debug.log

-Dorg.apache.tomcat.util.buf.UDecoder.ALLOW_ENCODED_SLASH=true

@angular%2fcore