That a single page application, developed in angular, pointing to a Java Rest API on heroku, that is on my github as well (taskme-app).If you want to check the result till now, check the website (maybe it will take time to load, because of the heroku initialization).
https://taskme-spa.herokuapp.com/
This project was generated with Angular CLI version 6.1.1.
Run ng serve for a dev server. Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.
Run ng build to build the project. The build artifacts will be stored in the dist/ directory. Use the --prod flag for a production build.
Just give the pository a hard reset to ensure that that are no modification on the package.json files.
git reset --hard