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I using lombok on some project, and with the new Android Studio 2.4 Update now (Preview) I get this strange error:

What went wrong: Execution failed for task ':core:javaPreCompileRelease'. Annotation processors must be explicitly declared now. The following dependencies on the compile classpath are found to contain annotation processor. Please add them to the annotationProcessor configuration. - lombok-1.16.16.jar Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior. Note that this option is deprecated and will be removed in the future. See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

I already tried:

annotationProcessor "org.projectlombok:lombok:1.16.16"

but has no effect.

I also tested:

android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true

But also has no effect.

Also checked the support page for further information but with no luck, anyone of you possibly? https://developer.android.com/studio/preview/features/index.html?utm_source=android-studio#annotationProcessor_config

cV2
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2 Answers2

7

Update:

provided "org.projectlombok:lombok:1.16.16" // keep
annotationProcessor "org.projectlombok:lombok:1.16.16" // add this

Just worked perfectly, but I have two Android Studio modules, and two build.gradle files. The error log just changed a bit (module prefix), and I thought the fix didn't work.

But after applying the fix to both build.gradle files everything worked perfectly.

tir38
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cV2
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  • Had the same problem. I was using Lombok in an Android lib module and a Java lib module. I only had to update build.gradle in the Android module. The Java module can stay as `compileOnly "org.projectlombok:lombok:[YOUR VERSION]"` – tir38 May 13 '17 at 16:06
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    With Android Studio 3.0 canary 1 in addition to the above provided/annotationProcessor rows I had to add also `javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }` inside the `android { defaultConfig{ } }` section. – DSoldo May 18 '17 at 09:47
  • `annotationProcessor` should be `kapt` – Diolor Nov 03 '17 at 15:29
2

I had the same problem but needed a slightly different fix (although the idea came from the accepted answer above - https://stackoverflow.com/a/43820494/1777346)

Turned out I already had the provided and annotationProcessor in both build.gradle files.. but, I also had a compile entry. Removing it fixed this issue for me:

compile 'org.projectlombok:lombok:1.16.16' // remove this
provided 'org.projectlombok:lombok:1.16.16'
annotationProcessor "org.projectlombok:lombok:1.16.16"

Just figured I'd add my findings in case it helps anyone. I'm using Android Studio 3.0 Canary 4 and gradle:3.0.0-alpha4 in my unending quest to get build times down.. which never seems to pay off :)

jpage4500
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