I use IntelliJ IDEA Ultimate 2017.3.3 and need to use Scala Version 2.12 for a project. However, IntelliJ says that JDK 1.8 is required for Scala Version 2.12. My problem is that I cannot select/choose JDK 1.8. Hence How can I set/install JDK to 1.8?
Any help is heavily appreciated.
Here you can download the Java JDK 1.8. After installing it, it should appear as an option inside IntelliJ.
UPDATE:
Find File -> Project structure
menu and go to Project Settings -> Project
tab. If on Project SDK
the Java version 1.8 SDK
is not selected, change it and click OK
.