Getting started with Vaadin 8.0.1 and IntelliJ IntelliJ IDEA 2017.1 EAP

I recommend using Maven. There are instructions on how to create a Vaadin project using Maven here https://vaadin.com/maven

Then import the project into IntelliJ or som other Ide.

Also it’s very easy to use Spring Initializr, even from within IntelliJ. Just juse the wizard, and select Vaadin package from Spring Boot options.