I'm facing a problem for over 3 days now and I can't solve. since I started to use Kotlin for Android,I stopped using "annotationProcessor" and started using "kapt", all things were working great with kapt until I started to build an Android Instant App, when I add "kapt" to any dependency like Glide or ButterKnife Gradle always displaying error that cound't find method kapt()
Could not find method kapt() for arguments [com.github.bumptech.glide:compiler:4.7.1] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.
Here are my project Gradle files
Project gradle file
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.2.71'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
app module gradle file
apply plugin: 'com.android.application'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.demo.instantapptest.app"
minSdkVersion 17
targetSdkVersion 28
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation project(':feature')
implementation project(':base')
}
base module gradle file
apply plugin: 'com.android.feature'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 28
baseFeature true
defaultConfig {
minSdkVersion 17
targetSdkVersion 28
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
api 'com.android.support:appcompat-v7:28.0.0'
api 'com.android.support.constraint:constraint-layout:1.1.3'
application project(':app')
feature project(':feature')
implementation "android.arch.lifecycle:extensions:1.1.1"
kapt "android.arch.lifecycle:compiler:1.1.1"
implementation 'com.github.bumptech.glide:glide:4.7.1'
kapt 'com.github.bumptech.glide:compiler:4.7.1'
implementation 'com.google.dagger:dagger:2.15.0'
kapt 'com.google.dagger:dagger-compiler:2.15.0'
implementation 'com.jakewharton:butterknife:9.0.0-rc2'
kapt 'com.jakewharton:butterknife-compiler:9.0.0-rc2'
}
feature module gradle file
apply plugin: 'com.android.feature'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 28
defaultConfig {
minSdkVersion 17
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation project(':base')
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
instantapp gradle file
apply plugin: 'com.android.instantapp'
dependencies {
implementation project(':feature')
implementation project(':base')
}
==========
Solved
by adding kotlin-android plugin to the base module
apply plugin: 'kotlin-android'
In my case,I was missing
apply plugin: 'kotlin-kapt'
Hope it helps someone as blind as me.
Here is a working solution for the latest version of android studio
instead of apply plugin use id 'kotlin-kapt'
inside plugins.
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt'
}
So you also forgot to add
apply plugin: 'kotlin-kapt'
apply plugin: 'dagger.hilt.android.plugin'
in app level gradel file. Nice.
In case anybody struggles with Room library:
I tried all above tips and nothing helped, unless I changed this miserable:
ksp("androidx.room:room-compiler:$roomVersion")
into:
annotationProcessor("androidx.room:room-compiler:$roomVersion")
At first, I also changed:
val roomVersion = "2.4.2"
into:
def roomVersion = "2.4.2"
AND THIS FINALLY DID THE JOB !!!
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