Angular material Could not find Angular Material core theme

Source: https://stackoverflow.com/questions/44230852/angular-material-could-not-find-angular-material-core-theme

Please insert below code into your style.css which is located in your src folder.

@import "../node_modules/@angular/material/prebuilt-themes/deeppurple-amber.css";

You can select any css under the prebuilt-themes folder.