ComponentProcessingStep was unable to process 'com.example.lab0.App_HiltComponents.SingletonC' because '<error>' could not be resolved.

[gdblsssu]

/home/uiop/AndroidStudioProjects/labs/lab0/app/build/generated/hilt/component_sources/debug/com/example/lab0/App_HiltComponents.java:157: error: package MainViewModel_HiltModules does not exist
          MainViewModel_HiltModules.KeyModule.class
                                   ^
/home/uiop/AndroidStudioProjects/labs/lab0/app/build/generated/hilt/component_sources/debug/com/example/lab0/App_HiltComponents.java:194: error: package MainViewModel_HiltModules does not exist
          MainViewModel_HiltModules.BindsModule.class
                                   ^
error: ComponentProcessingStep was unable to process 'com.example.lab0.App_HiltComponents.SingletonC' because '<error>' could not be resolved.

  Dependency trace:
      => element (CLASS): com.example.lab0.App_HiltComponents.ActivityRetainedC
      => annotation: @dagger.Subcomponent(modules = {com.example.lab0.App_HiltComponents.ActivityCBuilderModule.class, com.example.lab0.App_HiltComponents.ViewModelCBuilderModule.class, dagger.hilt.android.internal.managers.HiltWrapper_ActivityRetainedComponentManager_LifecycleModule.class, "<error>"})
      => annotation method: java.lang.Class<?>[] modules()
      => annotation value (ARRAY): value 'com.example.lab0.App_HiltComponents.ActivityCBuilderModule.class,com.example.lab0.App_HiltComponents.ViewModelCBuilderModule.class,dagger.hilt.android.internal.managers.HiltWrapper_ActivityRetainedComponentManager_LifecycleModule.class,<error>' with expected type java.lang.Class<?>[]
      => annotation value (STRING): value '<error>' with expected type java.lang.Class<?>

  If type '<error>' is a generated type, check above for compilation errors that may have prevented the type from being generated. Otherwise, ensure that type '<error>' is on your classpath.
error: ComponentProcessingStep was unable to process 'com.example.lab0.App_HiltComponents.ActivityRetainedC' because '<error>' could not be resolved.

  Dependency trace:
      => element (CLASS): com.example.lab0.App_HiltComponents.ActivityRetainedC
      => annotation: @dagger.Subcomponent(modules = {com.example.lab0.App_HiltComponents.ActivityCBuilderModule.class, com.example.lab0.App_HiltComponents.ViewModelCBuilderModule.class, dagger.hilt.android.internal.managers.HiltWrapper_ActivityRetainedComponentManager_LifecycleModule.class, "<error>"})
      => annotation method: java.lang.Class<?>[] modules()
      => annotation value (ARRAY): value 'com.example.lab0.App_HiltComponents.ActivityCBuilderModule.class,com.example.lab0.App_HiltComponents.ViewModelCBuilderModule.class,dagger.hilt.android.internal.managers.HiltWrapper_ActivityRetainedComponentManager_LifecycleModule.class,<error>' with expected type java.lang.Class<?>[]
      => annotation value (STRING): value '<error>' with expected type java.lang.Class<?>

  If type '<error>' is a generated type, check above for compilation errors that may have prevented the type from being generated. Otherwise, ensure that type '<error>' is on your classpath.
error: ComponentProcessingStep was unable to process 'com.example.lab0.App_HiltComponents.ViewModelC' because '<error>' could not be resolved.

  Dependency trace:
      => element (CLASS): com.example.lab0.App_HiltComponents.ViewModelC
      => annotation: @dagger.Subcomponent(modules = {dagger.hilt.android.internal.lifecycle.HiltWrapper_HiltViewModelFactory_ViewModelModule.class, "<error>"})
      => annotation method: java.lang.Class<?>[] modules()
      => annotation value (ARRAY): value 'dagger.hilt.android.internal.lifecycle.HiltWrapper_HiltViewModelFactory_ViewModelModule.class,<error>' with expected type java.lang.Class<?>[]
      => annotation value (STRING): value '<error>' with expected type java.lang.Class<?>

  If type '<error>' is a generated type, check above for compilation errors that may have prevented the type from being generated. Otherwise, ensure that type '<error>' is on your classpath.
5 errors

[bcorso]

This looks like https://github.com/google/dagger/issues/4060.

@gdblsssu what is your version of Dagger and KSP?

Can you check if upgrading to Dagger 2.49 and KSP 1.9.20-1.0.14 fixes the issue?

[gdblsssu]

No, maybe I messed up something in gradle?

// **top-level gradle**
buildscript {
    dependencies {
        classpath ("com.google.dagger:hilt-android-gradle-plugin:2.49")
    }
}
plugins {
    id("com.android.application") version "8.1.0" apply false
    id("org.jetbrains.kotlin.android") version "1.9.21" apply false
    id("com.google.dagger.hilt.android") version "2.49" apply false
    id("com.google.devtools.ksp") version "1.9.20-1.0.14" apply false

}

// **module-level gradle**
plugins {
    id("com.android.application")
    id("org.jetbrains.kotlin.android")
    id("com.google.dagger.hilt.android")
    id("com.google.devtools.ksp")
}

android {
    namespace = "com.example.lab0"
    compileSdk = 33

    defaultConfig {
        applicationId = "com.example.lab0"
        minSdk = 24
        targetSdk = 33
        versionCode = 1
        versionName = "1.0"

        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables {
            useSupportLibrary = true
        }
    }

    buildTypes {
        release {
            isMinifyEnabled = false
            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
        }
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = "1.8"

    }
    buildFeatures {
        compose = true
    }
    composeOptions {
        kotlinCompilerExtensionVersion = "1.5.6"
    }
    packaging {
        resources {
            excludes += "/META-INF/{AL2.0,LGPL2.1}"
        }
    }

}

dependencies {
    implementation("com.google.dagger:hilt-android:2.49")
    implementation("androidx.hilt:hilt-navigation-compose:1.0.0")
    implementation("androidx.appcompat:appcompat:1.6.1")

    ksp("com.google.dagger:hilt-android-compiler:2.49")

    implementation("androidx.room:room-runtime:2.5.2")
    ksp ("androidx.room:room-compiler:2.5.2")
    implementation ("androidx.room:room-ktx:2.5.2")

    implementation ("com.squareup.okhttp3:logging-interceptor:4.11.0")
    implementation ("com.squareup.retrofit2:retrofit:2.9.0")
    implementation ("com.squareup.okhttp3:okhttp:5.0.0-alpha.2")
    implementation ("com.squareup.retrofit2:converter-gson:2.9.0")
    implementation("io.coil-kt:coil-compose:2.4.0")
    implementation ("androidx.lifecycle:lifecycle-viewmodel-compose:2.4.1")
    implementation ("com.google.code.gson:gson:2.8.5")
    implementation ("com.airbnb.android:lottie-compose:5.2.0")
    implementation ("androidx.navigation:navigation-compose:2.5.1")
    implementation ("com.google.accompanist:accompanist-navigation-animation:0.23.1")
    implementation("androidx.navigation:navigation-compose:2.4.0")
    implementation("androidx.core:core-ktx:1.9.0")
    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.1")
    implementation("androidx.activity:activity-compose:1.7.0")
    implementation(platform("androidx.compose:compose-bom:2023.03.00"))
    implementation("androidx.compose.ui:ui")
    implementation("androidx.compose.ui:ui-graphics")
    implementation("androidx.compose.ui:ui-tooling-preview")
    implementation("androidx.compose.material3:material3")
    testImplementation("junit:junit:4.13.2")
    androidTestImplementation("androidx.test.ext:junit:1.1.5")
    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
    androidTestImplementation(platform("androidx.compose:compose-bom:2023.03.00"))
    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
    debugImplementation("androidx.compose.ui:ui-tooling")
    debugImplementation("androidx.compose.ui:ui-test-manifest")
}

[bcorso]

Does this happen even for clean builds or only incremental builds?

Is it possible to share your project or create a minimal reproducible example so that we can take a look?

[dmapr]

@gdblsssu — a stupid question perhaps, but have you tried using ksp version 1.9.21-1.0.15 to match the Kotlin version in your Gradle?

[gdblsssu]

@dmapr It didn't help

[gdblsssu]

@bcorso link to the project:https://github.com/gdblsssu/lab1_mobile/tree/lab5_2

[danysantiago]

Looks like the issue is that your project structure does not match your file's package.

Specifically MainViewModel has no package line.

[gdblsssu]

@danysantiago Thanks, it helped.