I am struggling compiling Android project in Android Studio with Dagger/Hilt and Proguard

Question

So I am pretty new to Android Studio, and Android development; my background is Java fullstack.

I started by creating a default template from Android Studio and moved my code (and code from a dagger sample project, and sample code from the API I'm trying to implement).

In terms of classes and events I think I have everything correct, but my project is not compiling. When I say run with stack trace, the error I get is:

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:kaptDebugKotlin'. ... Caused by: com.sun.tools.javac.processing.AnnotationProcessingError: java.lang.IllegalArgumentException: Invalid relative name: META-INF\proguard\com_inventoryscanner_ui_barcodescannerBarCodeScanningViewModel_HiltModules_BindsModule_LazyClassKeys.pro ... Caused by: java.lang.IllegalArgumentException: Invalid relative name: META-INF\proguard\com_inventoryscanner_ui_barcodescannerBarCodeScanningViewModel_HiltModules_BindsModule_LazyClassKeys.pro

I am using Android Studio Ladybug | 2024.2.1 Patch 3 Gradle 8.11.1 AGP 8.7.3 Java 11 SDK 35 Target 30

[libraries]
hilt-android = { group = "com.google.dagger", name = "hilt-android", version.ref = "hiltVersion" }
hilt-compiler = { group = "com.google.dagger", name = "hilt-android-compiler", version.ref = "hiltVersion" }
hilt-android-gradle-plugin = { group = "com.google.dagger", name = "hilt-android-gradle-plugin", version.ref = "hiltVersion" }
dagger-android-processor = { group = "com.google.dagger", name = "dagger-android-processor", version.ref = "hiltVersion" }

[plugins]
dagger-hilt-android = { id = "com.google.dagger.hilt.android", version.ref = "hiltVersion" }

kotlin = "2.0.0"
hiltVersion = "2.53"

App level

plugins {
    alias(libs.plugins.android.application) apply false
    alias(libs.plugins.kotlin.android) apply false
    alias(libs.plugins.dagger.hilt.android) apply false
}

Module level

plugins {
    alias(libs.plugins.android.application)
    alias(libs.plugins.kotlin.android)
    alias(libs.plugins.dagger.hilt.android)
    kotlin("kapt")
}

android {
    namespace = "com.inventoryscanner"
    compileSdk = 35

    defaultConfig {
        applicationId = "com.inventoryscanner"
        minSdk = 30
        //noinspection ExpiredTargetSdkVersion
        targetSdk = 30
        versionCode = 1
        versionName = "1.0"

        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
        multiDexEnabled = true
        resourceConfigurations += setOf()
        proguardFiles()
    }

    buildTypes {
        release {
            isMinifyEnabled = false
            proguardFiles(
                getDefaultProguardFile("proguard-android-optimize.txt"),
                "proguard-rules.pro"
            )
        }
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_11
        targetCompatibility = JavaVersion.VERSION_11
    }
    kotlinOptions {
        jvmTarget = "11"
    }
    buildFeatures {
        viewBinding = true
    }
    buildToolsVersion = "35.0.0"
}

dependencies {

    implementation(libs.androidx.core.ktx)
    implementation(libs.androidx.appcompat)
    implementation(libs.material)
    implementation(libs.androidx.constraintlayout)
    implementation(libs.androidx.lifecycle.livedata.ktx)
    implementation(libs.androidx.lifecycle.viewmodel.ktx)
    implementation(libs.androidx.navigation.fragment.ktx)
    implementation(libs.androidx.navigation.ui.ktx)
    implementation(libs.androidx.legacy.support.v4)
    implementation(libs.androidx.fragment.ktx)
    implementation(libs.hilt.android)
    implementation(libs.hilt.android.gradle.plugin)
    kapt(libs.dagger.android.processor)
    kapt(libs.hilt.compiler)
    testImplementation(libs.junit)
    androidTestImplementation(libs.androidx.junit)
    androidTestImplementation(libs.androidx.espresso.core)
}

hilt {
    enableAggregatingTask = true
}

kapt {
    correctErrorTypes = true
}

The proguard-rules.pro file is empty, or at least everything in there is the default commented out template, I haven't touched it. But I have tried copying settings from some places that hasn't made a difference and then I reverted them.

I've searched online high and low and have tried changing versions, settings, all to no avail. But I'm new to Android Studio, so I'm not sure if I'm missing something obvious.

Answer 1

So my steps to reproduce are:

1. Having Windows 11 machine (works fine on macOS)
2. Kotlin 2.1.0, using kapt for Hilt processor
3. Having Dagger and Hilt 2.53
4. Having ViewModel injected with Hilt

Fix is:

1. Downgrade Dagger and Hilt to 2.52
2. Downgrade Kotlin to 2.0.21

I think this can be a related issue. Seems that its going to be fixed in 2.53.1