Spring-boot

https://www.codecademy.com/paths/create-rest-apis-with-spring-and-java/tracks/spring-apis-web-and-spring-basics/modules/how-spring-works/articles/spring-project-layout-and-running-locally

Hello everyone,
I hope you are doing well. I am on the Create REST APIs with Spring and Java skill path, and there is an exercise to create a Hello Spring file on my local machine. I have attached the URL above. I downloaded the mySpringProject from spring initializr, and created the HelloController.java file as well. However, when I run the command ./ mvnw spring-boot:run in my Terminal, it doesn’t give me the correct output. It says “directory exists” but nothing else. I feel like I am confused how to make the HelloController.java file in Intellij IDE. I would really appreciate if someone can walk me through steps 3 and 4 in the exercise. Thank you so much!