Gradle: Spring 프로젝트 Main이 없을 때 발생하는 오류

Gradle Build

./gradlew build -x test

Error 내용

Configuration on demand is an incubating feature.
> Task :batch:bootJar FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':batch:bootJar'.
> Error while evaluating property 'mainClass' of task ':batch:bootJar'
   > Failed to calculate the value of task ':batch:bootJar' property 'mainClass'.
      > Main class name has not been configured and it could not be resolved

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 5s

Main 클래스가 없어서 발생하는 오류

해결방법

1. Main클래스 추가하기

2. 애플리케이션이 아니라면 Main 삭제

Main 클래스 추가하기

package com.tistory.api

import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication

@SpringBootApplication
class ApiApplication

fun main(args: Array<String>) {
    runApplication<ApiApplication>(*args)
}

애플리케이션이 아니라면 Main 안쓰게 설정

bootRun.enabled = false
bootJar.enabled = false
jar.enabled = true

끝