How do I fix Netbeans' invalid source release?

Question

I am getting this error when attempting to run a java program. I am using Neatbeans IDE 18.

error: invalid source release 16 with --enable-preview
  (preview language features are only supported for release 18)
BUILD FAILED (total time: 0 seconds)

I downloaded Netbeans IDE 19, and received the same error message.