Autocompletion not working in Android Studio Arctic Fox inside buildSrc - android-studio

Question

I am writing a custom plugin inside buildSrc using Android Studio Arctic Fox installed by brew. After some tests, there is a problem with the autocompletion of imports. It works inside app/build.gradle.kts that I can do import com.android.build.api.dsl.*, but inside buildSrc this raised Unresolved reference on android namespace.
The root build.gradle.kts:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
mavenCentral()
}
dependencies {
extra["kotlin_version"] = "1.4.32"
classpath("com.android.tools.build:gradle:7.0.2")
classpath(kotlin("gradle-plugin", version = "1.4.32"))
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
mavenCentral()
}
}
tasks.register("clean", Delete::class) {
delete(rootProject.buildDir)
}
build.gradle.kts under buildSrc:
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
plugins {
kotlin("jvm") version "1.4.31"
`kotlin-dsl`
}
repositories {
google()
mavenCentral()
}
tasks.withType<KotlinCompile>().configureEach {
kotlinOptions {
jvmTarget = "11"
apiVersion = "1.4"
}
}
dependencies {
implementation("com.android.tools.build:gradle:7.0.2")
implementation("com.android.tools.build:gradle-api:7.0.2")
implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.32")
implementation(kotlin("stdlib"))
gradleApi()
}
build.gradle.kts under app:
import com.example.pythonLibs
plugins {
id("com.android.application")
kotlin("android")
id("com.example.plugin")
}
android {
compileSdk = 30
ndkVersion = "23.0.7599858"
sourceSets {
getByName("main") {
pythonLibs {
srcDir("src/main/pythonLibs")
}
}
}
defaultConfig {
applicationId = "com.example.embedpythontest"
minSdk = 23
targetSdk = 30
versionCode = 1
versionName = "1.0.0"
testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
// consumerProguardFiles = [file("consumer-rules.pro")]
externalNativeBuild {
cmake {
//arguments("-DANDROID_STL=c++_shared")
//cppFlags("")
}
}
}
buildTypes {
getByName("release") {
isMinifyEnabled = false
proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
}
}
externalNativeBuild {
cmake {
path = file("src/main/cpp/CMakeLists.txt")
version = "3.21.3"
}
}
compileOptions {
sourceCompatibility(JavaVersion.VERSION_11)
targetCompatibility(JavaVersion.VERSION_11)
}
kotlinOptions {
jvmTarget = "11"
apiVersion = "1.4"
}
}
dependencies {
implementation(fileTree(mapOf("dir" to "libs", "include" to listOf("*.jar"))))
implementation("androidx.appcompat:appcompat:1.3.1")
implementation("com.google.android.material:material:1.4.0")
implementation("androidx.constraintlayout:constraintlayout:2.1.1")
testImplementation("junit:junit:4.13.2")
androidTestImplementation("androidx.test.ext:junit:1.1.3")
androidTestImplementation("androidx.test.espresso:espresso-core:3.4.0")
}
in all files under buildSrc/src/main/kotlin/**, when doing import com.android.build.api.dsl.*, a problem shown but build project is ok. But if I do import inside buildSrc/build.gradle.kts, it won't be compiled. But the same thing could be done inside app/build.gradle.kts.
Why Android Studio cannot find the class?

Answer 1

This problem is caused by not being familiar with the dependencies in Gradle. After changing the dependncy block to:
dependencies {
implementation("com.android.tools.build:gradle-api:7.0.2")
implementation(kotlin("stdlib"))
gradleApi()
}
which copied from here that would solve the problem.