Error or misconfiguration?

[HDNAdministrator]

I'm getting the error bellow after following the kotlin example

The task 'compileDebugAndroidTestKotlin' (org.jetbrains.kotlin.gradle.tasks.KotlinCompile) is not a subclass of the given type (org.gradle.api.tasks.SourceTask).
The task 'compileDebugUnitTestKotlin' (org.jetbrains.kotlin.gradle.tasks.KotlinCompile) is not a subclass of the given type (org.gradle.api.tasks.SourceTask).
The task 'compileDebugKotlin' (org.jetbrains.kotlin.gradle.tasks.KotlinCompile) is not a subclass of the given type (org.gradle.api.tasks.SourceTask).
The task 'compileReleaseUnitTestKotlin' (org.jetbrains.kotlin.gradle.tasks.KotlinCompile) is not a subclass of the given type (org.gradle.api.tasks.SourceTask).
The task 'compileReleaseKotlin' (org.jetbrains.kotlin.gradle.tasks.KotlinCompile) is not a subclass of the given type (org.gradle.api.tasks.SourceTask).

Config

Gradle 7.6

master build.gradle

plugins {
id 'com.android.application' version '7.4.1' apply false
id 'com.android.library' version '7.4.1' apply false
id 'org.jetbrains.kotlin.android' version '1.8.10' apply false
id 'com.google.protobuf' version '0.9.2' apply false
}

module build.grade

plugins {
id 'com.android.library'
id 'org.jetbrains.kotlin.android'
id 'com.google.protobuf'
}

android {
...
}

dependencies {
protobuf(rootProject.ext.protos.grpc)
implementation rootProject.ext.libs.grpc.kotlinStub
implementation rootProject.ext.libs.grpc.okHttp
implementation rootProject.ext.libs.grpc.protobuf
implementation rootProject.ext.libs.grpc.stub
implementation rootProject.ext.libs.protobuf.protobuf
testImplementation rootProject.ext.libs.junit
testImplementation rootProject.ext.libs.mockk
testImplementation rootProject.ext.libs.truth
}

tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
sourceCompatibility = rootProject.ext.java
targetCompatibility = rootProject.ext.java

kotlinOptions {
	jvmTarget = rootProject.ext.java.toString()
	freeCompilerArgs = ["-opt-in=kotlin.RequiresOptIn"]
}

}

protobuf {
protoc { artifact = rootProject.ext.libs.protobuf.protoc }
plugins {
java { artifact = rootProject.ext.libs.grpc.protocJava }
grpc { artifact = rootProject.ext.libs.grpc.protocJava }
grpckt { artifact = rootProject.ext.libs.grpc.protocKotlin }
}
generateProtoTasks {
all().each {
it.plugins {
java { option 'lite' }
grpc { option 'lite' }
grpckt { option 'lite' }
}
it.builtins {
kotlin { option 'lite' }
}
}
}
}

[jamesward]

I think that you need to use a newer maybe 8.1 alpha version of the Android Gradle Plugin with Kotlin 1.8.10. Can you try that?

[HDNAdministrator]

Thanks for the reply.
After experimenting different combinations of versions I found out that the issue is with
id 'com.google.protobuf' version '0.9.2' apply false
If the version is downgraded to 0.9.1 the errors go away.
It is seems to be a bug after reading the issues reported in com.google.protobuf repo.

[jamesward]

Oh yes - Here is the bug: google/protobuf-gradle-plugin#656