Node Sass version 6.0.1 is incompatible with ^4.0.0. angular

 When you getting error  "Node Sass version 6.0.1 is incompatible with ^4.0.0. angular" .The solution are as below:-

Step 1:- npm uninstall node-sass 

Step 2:- npm install node-sass@4.14.1

I thing it will help you.

Thank you