OneSignal-Gradle-Plugin Incompatibility with Dagger Hilt's enableAggregatingTask

Project Setup

build.gradle (some information changed or removed because this is our company's code)

buildscript {
    ext {
        kotlin_version = '1.5.31'
        navigationVersion = '2.3.5'
        daggerVersion = '2.40'
    }
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:7.0.3'
        classpath 'com.google.gms:google-services:4.3.10'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "com.google.firebase:firebase-crashlytics-gradle:2.8.0"
        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$navigationVersion"
        classpath "com.google.dagger:hilt-android-gradle-plugin:$daggerVersion"
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

tasks.register("delete", Delete) {
    delete rootProject.buildDir
}

app/build.gradle (some information changed or removed because this is our company's code)

buildscript {
    repositories {
        mavenCentral()
        maven { url 'https://plugins.gradle.org/m2/' }
    }
    dependencies {
        classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:0.13.4'
    }
}

repositories {
    mavenCentral()
}

apply plugin: 'com.onesignal.androidsdk.onesignal-gradle-plugin'
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'dagger.hilt.android.plugin'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'
apply plugin: 'androidx.navigation.safeargs.kotlin'
apply plugin: 'kotlin-parcelize'

ext.buildToolsVersion = '31.0.0'

android {
    compileSdkVersion 31
    buildToolsVersion project.ext.buildToolsVersion

    defaultConfig {
        applicationId "[redacted]"
        minSdkVersion 21
        targetSdkVersion 31
        versionCode 1
        versionName '1.0.0'
        multiDexEnabled true
    }

    buildTypes {
        debug {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    flavorDimensions "scope"

    productFlavors {
        prod {
            dimension "scope"
        }
    }

    packagingOptions {
        exclude 'LICENSE.txt'
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = "1.8"
    }

    buildFeatures {
        viewBinding true
    }

    bundle {
        language {
            enableSplit = false
        }
    }

    hilt {
        enableAggregatingTask = true //fixme have to set this to false
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2"

    implementation "androidx.navigation:navigation-fragment-ktx:$navigationVersion"
    implementation "androidx.navigation:navigation-ui-ktx:$navigationVersion"

    implementation platform("com.google.firebase:firebase-bom:28.0.0")
    implementation "com.google.firebase:firebase-analytics-ktx"
    implementation "com.google.firebase:firebase-crashlytics-ktx"

    //ui
    implementation "androidx.appcompat:appcompat:1.4.0-rc01"
    implementation "androidx.recyclerview:recyclerview:1.2.1"
    implementation "com.google.android.material:material:1.4.0"
    implementation "androidx.constraintlayout:constraintlayout:2.1.1"
    implementation "androidx.preference:preference-ktx:1.1.1"
    implementation "androidx.cardview:cardview:1.0.0"
    implementation "androidx.core:core-splashscreen:1.0.0-alpha02"

    def lifecycleVersion = "2.4.0"
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycleVersion"
    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycleVersion"
    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycleVersion"
    implementation "androidx.lifecycle:lifecycle-common:$lifecycleVersion"

    implementation "androidx.dynamicanimation:dynamicanimation-ktx:1.0.0-alpha03"

    // remote
    def okHttpVersion = '4.9.2'
    implementation "com.squareup.okhttp3:okhttp:$okHttpVersion"
    implementation "com.squareup.okhttp3:okhttp-urlconnection:$okHttpVersion"
    implementation "com.squareup.okhttp3:logging-interceptor:$okHttpVersion"
    def retrofitVersion = '2.9.0'
    implementation "com.squareup.retrofit2:retrofit:$retrofitVersion"
    implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"
    implementation "com.squareup.retrofit2:adapter-rxjava2:$retrofitVersion"

    implementation "io.coil-kt:coil:1.4.0"

    // rx
    implementation "io.reactivex.rxjava3:rxandroid:3.0.0"
    implementation "io.reactivex.rxjava3:rxjava:3.1.1"
    implementation "com.f2prateek.rx.preferences2:rx-preferences:2.0.1"
    implementation "com.jakewharton.rxbinding4:rxbinding-core:4.0.0"
    implementation "com.jakewharton.rxbinding4:rxbinding-material:4.0.0"

    // di
    implementation "com.google.dagger:hilt-android:$daggerVersion"
    kapt "com.google.dagger:hilt-compiler:$daggerVersion"

    // util
    implementation "com.jakewharton.timber:timber:4.7.1"
    implementation "io.michaelrocks:libphonenumber-android:8.12.31"

    // push
    implementation 'com.onesignal:OneSignal:4.6.0'

    //testImplementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
}

Full Error

dagger-2.40-syncing-issue

Short version

On gradle sync, the compiler is failing and returning an error about a missing build variant:

org.gradle.api.UnknownDomainObjectException: KotlinJvmAndroidCompilation with name 'prodReleaseUnitTest' not found

What happened

I have raised the issue on Dagger's github project (Dagger issue #2990), and I was pointed out to remove plugins one by one, and turning off the OneSignal gradle plugin (and adding the necessary play-services-base) resulted in a successful gradle sync. I was also pointed out to the following issue: Dagger issue #2744, where "resolving dependencies during task execution" might be the problem.

I will copy the other important parts of the discussion here (sorry, I was not able to add everything inside the quote):

I think the problem is: org.gradle.api.UnknownDomainObjectException: KotlinJvmAndroidCompilation with name 'prodReleaseUnitTest' not found

gradle version 7.0.3 (Android Studio 2020.3.1 Patch 3)

buildTypes: debug and release.

flavorDimensions "scope"

productFlavors {
    prod {
        dimension "scope"
    }
}

There are no test folders in the project (also, the test dependencies were removed).

The same error occurs when syncing using prodDebug or prodRelease.

Working scenarios:

1- Using version 2.39.1 or below

2- Adding this to the build.gradle file in the android config: hilt { enableAggregatingTask = false }

Please find the proposed solution by @danysantiago for the oss-licenses-plugin here: Issue #2774 solution. It may be related to when the dependencies are being checked.