安装node-sass时出现一下错误：
gyp ERR! configure error
gyp ERR! stack Error: EACCES: permission denied, mkdir '/Users/zhang/Documents/data_insight_yinzhou/data_insight_yinzhou/node_modules/node-sass/build'
gyp ERR! System Darwin 17.6.0
gyp ERR! command "/usr/local/bin/node" "/Users/zhang/Documents/data_insight_yinzhou/data_insight_yinzhou/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd /Users/zhang/Documents/data_insight_yinzhou/data_insight_yinzhou/node_modules/node-sass
gyp ERR! node -v v10.1.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
查看资料发现，可能需要增加--unsafe-perm，即
sudo npm install node-sass --unsafe-perm --save-dev
成功安装node-sass
转自 https://blog.csdn.net/u010963686/article/details/80675240