ode Sass version 6.0.0 is incompatible with ^4.0.0. code example
Example 1: Error: Node Sass version 5.0.0 is incompatible with ^4.0.0.
with npm =>
1.npm uninstall node-sass
2.npm install node-sass@4.14.1
with yarn =>
1.yarn remove node-sass
2.yarn remove node-sass@4.14.1
Example 2: Error: Node Sass version 5.0.0 is incompatible with ^4.0.0
All Possible Solution added Here
https://exerror.com/error-node-sass-version-5-0-0-is-incompatible-with-4-0-0/