I'm having a problem getting angular language support running with a project that uses webpack (not sure if that's important, but without webpack everything works fine in intellij), and which is a multi module project consisting of java and an angular app. The problem is that none of angular's modules are recognized Says RouterModule is not an angular module. No directive is matched for *ngFor and unresolved pipe async. Though MatAutocompleteModule is correctly imported. I've imported BrowserModule, CommonModule, and the project works perfectly fine. It's just intellij's detection that doesn't work. I've installed @angular/language-service via npm. I've restarted the IDE (so many times). What can I do to get this working? dependencies (angular) "@angular/animations": "~7.2.14", "@angular/cdk": "~7.3.7", "@angular/common": "~7.2.14", "@angular/compiler": "~7.2.14", "@angular/core": "~7.2.14", "@angular/forms": "~7.2.14", "@angular/material": "^7.3.7", "@angular/platform-browser": "~7.2.14", "@angular/platform-browser-dynamic": "~7.2.14", "@angular/router": "~7.2.14", devDependencies (angular related) "@angular-devkit/build-angular": "~0.13.0", "@angular-devkit/build-ng-packagr": "~0.13.0", "@angular/cli": "7.3.4", "@angular/compiler-cli": "7.2.14", "@ngtools/webpack": "7.3.4", "@angular/language-service": "^7.2.14", "angular-router-loader": "0.8.5", "angular2-template-loader": "0.6.2", "typescript": "3.2.4", Continue reading...