DaggerAppComponent not created

In Kotlin, we have to add kapt compiler plugin to use Dagger 2.

In your app gradle, add this plugin

apply plugin: 'kotlin-kapt'

And add dependencies as below

dependencies
{
    implementation "com.google.dagger:dagger:$latest_version"
    kapt  "com.google.dagger:dagger-compiler:$latest_version"
    implementation "com.google.dagger:dagger-android:$latest_version"
    kapt  "com.google.dagger:dagger-android-processor:$latest_version"
    implementation "com.google.dagger:dagger-android-support:$latest_version"
    kapt  "com.google.dagger:dagger-android-support:2.12"
}

See Kotlin Documentation

With the dependencies listed below everything works:

If you are using Kotlin

apply plugin: 'kotlin-kapt'

dependencies {
    def daggerVer = 2.27 // or latest version

    implementation "com.google.dagger:dagger:$daggerVer"
    implementation "com.google.dagger:dagger-android-support:$daggerVer"
    kapt "com.google.dagger:dagger-android-processor:$daggerVer"
    kapt "com.google.dagger:dagger-compiler:$daggerVer"
}

If you are using Java:

dependencies {
    def daggerVer = 2.27 // or latest version

    implementation "com.google.dagger:dagger:$daggerVer"
    implementation "com.google.dagger:dagger-android-support:$daggerVer"
    annotationProcessor "com.google.dagger:dagger-android-processor:$daggerVer"
    annotationProcessor "com.google.dagger:dagger-compiler:$daggerVer"
}

See google tutorial

You can find the latest release number here.

in my case (currently using kotlin)

i use this build gradle

  implementation 'com.google.dagger:dagger:2.24'
  annotationProcessor 'com.google.dagger:dagger-compiler:2.24'
  annotationProcessor 'com.google.dagger:dagger-android-processor:2.24'
  implementation 'com.google.dagger:dagger-android-support:2.24'

after sync gradle,

1. I quit Android studio (Command + Q).

2. Delete folder "build" inside 'app' folder

3. reopen Android Studio

DaggerAppComponent created.