Databinding annotation processor kapt warning

Question

In my app module's build.gradle, I have added

dependencies {
kapt('com.android.databinding:compiler:3.1.2')
...
}

but I'm still receiving the compiler warning for

app: 'annotationProcessor' dependencies won't be recognized as kapt annotation processors. Please change the configuration name to 'kapt' for these artifacts: 'com.android.databinding:compiler:3.1.2'.

Everything functions, I just hate having warnings hanging around.

Any help is much appreciated!

do you have other dependencies that use annotationProcessor? — peshkira, May 02 '18 at 14:55
In my build.gradle, all other dependencies are "implementation", "testImplementation", or "androidTestImplementation". I don't know if the 3rd party dependencies I have are using annotation processing. — cren90, May 02 '18 at 15:57
Same problem here. Plus I get this error: e: java.util.ServiceConfigurationError: javax.annotation.processing.Processor: android.databinding.annotationprocessor.ProcessDataBinding Unable to get public no-arg constructor — cesards, May 06 '18 at 01:57
`kapt` is for kotlin and `annotationProcessor` for java code — Ryan Amaral, May 18 '18 at 18:34
@RyanAmaral, I am aware of that, and am using kapt in my build.gradle (above) but still get the warning — cren90, May 18 '18 at 20:27
[Solved Databinding annotation processor kapt warning .](https://stackoverflow.com/a/60275454/5788247) — Shomu, Feb 18 '20 at 07:15

score 17 · Accepted Answer · answered Jul 16 '18 at 20:42

I had same warnings until I upgraded to the latest Android Gradle build plugin and Kotlin. Now they are gone. Here is the configuration I use.

project.gradle

buildscript {
    dependencies {
        classpath "com.android.tools.build:gradle:3.1.3"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.51"
    }
}

module.gradle

apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'

android {
    ...
    dataBinding {
        enabled = true
    }
}

dependencies {
    // no kapt declaration for databinding here
}

Hope it helps.

Looks like the update to 1.2.51 and removing the kapt dependency fixes it — cren90, Jul 17 '18 at 20:14

score 1 · Answer 2 · edited Oct 11 '19 at 12:25

1

Add following in you app build.gradle

kapt "com.android.databinding:compiler:$android_plugin_version"
apply plugin: 'kotlin-kapt' // This one at top where plugin belong to

This will do the trick.

$android_plugin_version is version of com.android.tools.build:gradle in application build.gradle

Also, add this to your module build.gradle

android {
    /// Existing Code
    kapt {
        generateStubs = true
    }
}

You are missing apply plugin: 'kotlin-kapt' i think.

edited Oct 11 '19 at 12:25

Roaim

2,298
2
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answered May 31 '18 at 15:20

Randheer

984
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1

Now: 'kapt.generateStubs' is not used by the 'kotlin-kapt' plugin – LunaVulpo Jun 15 '18 at 13:35

Databinding annotation processor kapt warning

2 Answers2

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