Upgrading to Node 8.x
$ nvm ls to check your currently installed version. Set this version in the reinstall-packages-from flag in the next step.$ nvm install 10.15.0 --reinstall-packages-from=10.14.2$ nvm alias default 10.15.0npm install10.15.0

Upgrading from node 6 to 8 on OSX can lead to some wonky SHA1/SHA512 incompatibilities if you don’t clear your packages first.
$ nvm ls to check your currently installed version. Set this version in the reinstall-packages-from flag in the next step.$ nvm install 8.11.1 --reinstall-packages-from=8.9.3$ nvm alias default 8.11.1$ grunt clean or manually delete your node_modules from coschedule/api, coschedule/web and the main directory (coschedule/)$ npm cache clean --forcenpm install