I was using Lombok fine with 2020.2 and plugin, but in 2020.3.1 it should be (and it is) included

...but I had compilation errors like Cannot resolve symbol 'log' (when using @Slf4j)

I solved the problem deleting .idea from project and opened it again...

edit: it happened to me again today with new checkout (we do not have .idea in Git) and I had similar problem. Not sure if that was a fix, but I checked the plugin (it is not on screenshot above), it started working after, but I built it from cmd (Maven) and tried few other things, so I'm not sure what is a real fix

I managed to make it work on a gradle project (Intellij 2020.3.2) by using exactly this in build.gradle :

annotationProcessor 'org.projectlombok:lombok:1.18.18'
implementation 'org.projectlombok:lombok:1.18.18'

I think important point is to declare it as "annotationProcessor" to include it in the gradle build. I did not even have to mess around with "User-local build process VM options" and even "Enable Annotation Processing" is not ticked in Intellij Settings. So I guess that gradle is taking care of the Lombok generation, and not IDEA. but at least it finally works after hours lost trying to fix IntelliJ.

Please check in: Lombok plugin settings you didn't disable it unintentionally.

Installing Lombok plugin and enabling the annotation processor should do the needful. If still issue persists then i think you should report a bug and see what they reply.

A work around is here, until they fix the actual problem:

https://youtrack.jetbrains.com/issue/IDEA-250718#focus=Comments-27-4418347.0-0

(see screenshoot for IJ fix)

This is the problem with lombok, whenever IntelliJ provides upgrade lombok starts crying. Same happened with IntelliJ 2020.2

Now there are 2 solutions

1. Wait till the developers of lombok provide upgrade compatible with IntelliJ 2020.3
2. Downgrade IntelliJ to previous working version. For me IntelliJ 2020.2 worked perfectly fine.

To summarize go to IntelliJ Preferences (Cmd + ,)

Preferences -> Build, Execution, Deployment -> Compiler

search for this option:

User-local build process VM options (overrides Shared options):

and add this value:

-Djps.track.ap.dependencies=false

My problem was related to my lombok version

Before upgrade my IntelliJ to 2020.03 my lombok version was 1.18.10 and the lombok plugin 0.32-EAP

After upgrade my lombok dependency to 1.18.16 it start work again without any issues. Looks like the plugin is not bundled yet in the community edition.

I don't if is necessary, but my first action was to uninstall the plugin when I read the README on Lombok Plugin repo

Seems like lombok is not bundled in Community edition of 2020.3 version. Fix is expected in 2020.3.1 version.

From Lombok plugin GitHub issue

Sorry guys, I have to confirm, it was forgotten to add it properly into the last community build. See bug on Jetbrains Yourtrack: https://youtrack.jetbrains.com/issue/IDEA-257311

The Ultimate 2020.3 version contains lombok plugin as expected per default.

lombok plugin should be included in both IntelliJ distribution (Ultimate and Community) starting with 2020.3 release. Something get wrong, we are working to fix it.

Fix is now planned for IntelliJ Community release 2020.3.1

Update

2020.3.1 Community is released and contains lombok plugin by default now