Intellij Java 버전 설정 방법 (Doesn't say anything about its target Java version (required compatibility with Java 11) 에러해결 방법)

스프링부트 3.0 이상에서 Java 11 버전을 사용하니 아래의 에러가 발생했다.

Doesn't say anything about its target Java version (required compatibility with Java 11)

해결방법

build.gradle

Project Structure > Project

Win 단축키 : Ctrl + Shift + Alt + S
Mac 단축키 : ⌘ + ;

Project Structure > Modules

Win 단축키 : Ctrl Shift Alt S
Mac 단축키 : ⌘ ;

File > Settings > Build, Execution, Deployment > Build Tools > Gradle

Win 단축키 : Ctrl Alt S
Mac 단축키 : ⌘ ,

File > Settings > Build, Execution, Deployment > Compiler > Java Compiler

Win 단축키 : Ctrl Alt S
Mac 단축키 : ⌘ ,

출처 :
https://jojoldu.tistory.com/698