Post install script has issue with root

[cyberluke]

Problem:

gyp verb install version is good
gyp verb get node dir target node version installed: 10.15.0
gyp verb build dir attempting to create "build" dir: /usr/lib/node_modules/node-sass-chokidar/node_modules/node-sass/build
gyp ERR! configure error
gyp ERR! stack Error: EACCES: permission denied, mkdir '/usr/lib/node_modules/node-sass-chokidar/node_modules/node-sass/build'
gyp ERR! System Linux 4.15.0-1021-aws
gyp ERR! command "/usr/bin/node" "/usr/lib/node_modules/node-sass-chokidar/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd /usr/lib/node_modules/node-sass-chokidar/node_modules/node-sass
gyp ERR! node -v v10.15.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
Build failed with error code: 1

Solved by: sudo npm install node-sass-chokidar -g --unsafe-perm=true