I've create a brand new angular application using the CLI. I selected SCSS as the stylesheet choice. I type ng serve to run the application. Everything is OK at this point. I open the stylesheet and add any style e.g. body { background-color: red; } The website now fails to build and I have the following error in the console window: Error: ./src/app/pages/myMod.module.ts Module build failed (from ./node_modules/@ngtools/webpack/src/ivy/index.js): NonErrorEmittedError: (Emitted value instead of an instance of Error) Error: Module build failed (from ./node_modules/sass-loader/dist/cjs.js): SassError: expected "{". ╷ 12 │ body If I quit the ng serve and start it again it works. But it'll fail as soon as I add a new css rule. This is the latest version of node js and the CLI is also up to date. Continue reading...