New package in Gradle?

Question

Java

Good day! Haven't had time to deal with gradle yet, so there is a blunt. I generate proto files in folder /src/main/kotlin/tutorialand IntelliJ seems to see new classes, but gradle swears



Error:



Gradle file:

import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

plugins {
    id("org.springframework.boot") version "2.5.7"
    id("io.spring.dependency-management") version "1.0.11.RELEASE"
    kotlin("jvm") version "1.5.31"
    kotlin("plugin.spring") version "1.5.31"
}

sourceSets {

}

group = "com.lightswitch"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_11

repositories {
    mavenCentral()
}

dependencies {

    implementation("org.springframework.boot:spring-boot-starter") {
        exclude("org.springframework.boot", "spring-boot-starter-logging")
    }
    implementation("org.springframework.boot:spring-boot-starter-log4j2")
    implementation("org.jetbrains.kotlin:kotlin-reflect")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
    testImplementation("org.apache.hadoop:hadoop-hdfs:3.3.1")
    implementation("org.apache.hadoop:hadoop-common:3.3.1")
    implementation("org.apache.hadoop:hadoop-mapreduce-client-core:3.3.1")
    implementation("org.apache.hadoop:hadoop-client:3.3.1")

    implementation("org.apache.solr:solr-solrj:8.11.0")
    implementation("org.apache.solr:solr-core:8.11.0")
    implementation("org.apache.solr:solr-common:1.3.0")

    implementation("org.apache.tika:tika-core:2.1.0")
    implementation("org.apache.tika:tika-parsers:2.1.0")

    implementation("com.google.protobuf:protobuf-java:3.19.1")
    implementation("com.google.protobuf:protobuf-kotlin:3.19.1")

    implementation("org.jsoup:jsoup:1.14.3")

    testImplementation("org.apache.hadoop:hadoop-hdfs:3.3.1")
    testImplementation("org.springframework.boot:spring-boot-starter-test")
}

sourceSets {
    main {
        java {
            setSrcDirs(listOf("src/kotlin"))
        }
        resources {
            setSrcDirs(listOf("src/resources"))
        }
    }
}

tasks.withType<KotlinCompile> {
    kotlinOptions {
        freeCompilerArgs = listOf("-Xjsr305=strict")
        jvmTarget = "11"
    }
}

tasks.withType<Test> {
    useJUnitPlatform()
}

As I understand it, gradle simply does not see the tutorial package. Question - how to inform him about this folder?