android Jetpack Room Export schemas failed - kotlin

Question

I refer to setting Export schemas in the documentation, But it failed, the error is as follows:
The following is my Gradle configuration:
plugins {
id 'com.android.application'
id 'org.jetbrains.kotlin.android'
// hilt
id 'kotlin-kapt'
id 'com.google.dagger.hilt.android'
}
android {
namespace 'com.freedom.android'
compileSdk 32
defaultConfig {
applicationId "com.freedom.android"
minSdk 26
targetSdk 32
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary true
}
// Room
javaCompileOptions {
annotationProcessorOptions {
compilerArgumentProviders(
new RoomSchemaArgProvider(new File(projectDir, "schemas"))
)
}
}
}
buildTypes {
release {
minifyEnabled 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 '1.1.1'
}
packagingOptions {
resources {
excludes += '/META-INF/{AL2.0,LGPL2.1}'
}
}
applicationVariants.all { variant ->
variant.getRuntimeConfiguration().exclude group: 'com.google.code.findbugs', module: 'jsr305'
}
}
dependencies {
/**
* Room
*/
def room_version = "2.4.3"
implementation "androidx.room:room-runtime:$room_version"
annotationProcessor "androidx.room:room-compiler:$room_version"
// To use Kotlin annotation processing tool (kapt)
kapt "androidx.room:room-compiler:$room_version"
// To use Coroutine features, you must add `ktx` artifact from Room as a dependency. androidx.room:room-ktx:<version>
implementation "androidx.room:room-ktx:$room_version"
// Could not find method ksp() for arguments [androidx.room:room-compiler:2.4.3] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.
// To use Kotlin Symbol Processing (KSP)
// ksp "androidx.room:room-compiler:$room_version"
// hilt
implementation("com.google.dagger:hilt-android:2.44")
kapt("com.google.dagger:hilt-android-compiler:2.44")
def lifecycle_viewmodel_version = "2.5.1"
implementation "androidx.lifecycle:lifecycle-viewmodel:$lifecycle_viewmodel_version"
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_viewmodel_version"
// private val articleViewModel: ArticleViewModel by viewModels()
// java.lang.IllegalArgumentException: CreationExtras must have a value by `SAVED_STATE_REGISTRY_OWNER_KEY`
implementation "androidx.fragment:fragment-ktx:1.5.1"
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.1'
implementation 'androidx.activity:activity-compose:1.3.1'
implementation "androidx.compose.ui:ui:$compose_ui_version"
implementation "androidx.compose.ui:ui-tooling-preview:$compose_ui_version"
implementation 'androidx.compose.material:material:1.1.1'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_ui_version"
debugImplementation "androidx.compose.ui:ui-tooling:$compose_ui_version"
debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_ui_version"
}
// hilt
// Allow references to generated code
kapt {
correctErrorTypes = true
}
// Room
class RoomSchemaArgProvider implements CommandLineArgumentProvider {
#InputDirectory
#PathSensitive(PathSensitivity.RELATIVE)
File schemaDir
RoomSchemaArgProvider(File schemaDir) {
this.schemaDir = schemaDir
}
#Override
Iterable<String> asArguments() {
// Note: If you're using KSP, you should change the line below to return
// ["room.schemaLocation=${schemaDir.path}"]
return ["-Aroom.schemaLocation=${schemaDir.path}"]
}
}
I am basically sure that it is an error caused by setting Export schemas. When I set exportSchema = false, the program can run normally. Sorry my settings file is a bit messy, but like I said, it works.

Answer 1

Convert string like this:
return ["-Aroom.schemaLocation=${schemaDir.path}".toString()]
About bug here:
https://github.com/gradle/gradle/issues/4730#