A problem

When I try to incorporate a package of hilt with using ksp, I came across the several errors and was not able to build my application temporaly.

Before build.gradle.kt

// Top-level build file where you can add configuration options common to all sub-projects/modules.
plugins {
    alias(libs.plugins.androidApplication) apply false
    alias(libs.plugins.jetbrainsKotlinAndroid) apply false
}

Before app/build.gradle.kt

plugins {
    id("com.google.devtools.ksp") version "1.8.22-1.0.11" apply false
    id("com.google.dagger.hilt.android") version "2.44" apply false
    alias(libs.plugins.androidApplication)
    alias(libs.plugins.jetbrainsKotlinAndroid)
}

android {
    namespace = "com.kaitokitaya.jounal"
    compileSdk = 34

    defaultConfig {
        applicationId = "com.kaitokitaya.jounal"
        minSdk = 26
        targetSdk = 34
        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 = "1.5.1"
    }
    packaging {
        resources {
            excludes += "/META-INF/{AL2.0,LGPL2.1}"
        }
    }
}

dependencies {

    implementation(libs.androidx.core.ktx)
    implementation(libs.androidx.lifecycle.runtime.ktx)
    implementation(libs.androidx.activity.compose)
    implementation(platform(libs.androidx.compose.bom))
    implementation(libs.androidx.ui)
    implementation(libs.androidx.ui.graphics)
    implementation(libs.androidx.ui.tooling.preview)
    implementation(libs.androidx.material3)
    implementation(libs.androidx.cardview)
    implementation(libs.androidx.lifecycle.viewmodel.compose)
    implementation(libs.androidx.navigation.compose)
    testImplementation(libs.junit)
    androidTestImplementation(libs.androidx.junit)
    androidTestImplementation(libs.androidx.espresso.core)
    androidTestImplementation(platform(libs.androidx.compose.bom))
    androidTestImplementation(libs.androidx.ui.test.junit4)
    debugImplementation(libs.androidx.ui.tooling)
    debugImplementation(libs.androidx.ui.test.manifest)

    // Dagger Hilt
    implementation(libs.hilt.android)
    // You must write the both of following dependencies, hilt and dagger.
    ksp(libs.dagger.compiler)
    ksp(libs.hilt.compiler)
}

I got a same error here.

Could not determine the dependencies of task ':app:kspDebugKotlin' in Android project.

Cause

This problem is caused the version incompatibility that is occured by
hilt(2.44) and ksp(1.8.22-1.0.11)

In Kotlin 1.9.0, we have to use ksp (1.9.0 -1.0.12) and hilt (2.48) if ksp's version is newest.

This error doesn't show the core of problem directly. When you come across the error related on the build.gradle and something like package management in Android, you firstly address the gap of version.

(I use the newest feature of version catalog in my project.)

So I modified the following line.

    // id("com.google.devtools.ksp") version "1.8.22-1.0.11" apply false
    // id("com.google.dagger.hilt.android") version "2.44" apply false
    id("com.google.devtools.ksp") version "1.9.0-1.0.12" apply false
    id("com.google.dagger.hilt.android") version "2.48" apply false
    alias(libs.plugins.androidApplication) apply false
    alias(libs.plugins.jetbrainsKotlinAndroid) apply false

I got succeeded it.