코틀린 기반 Springboot 3.0 빌드가 자꾸 실패합니다..

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안녕하세요, 이번에 SpringBoot 3.0 이 릴리즈돼서 해당 버전으로 빌드를 진행했는데 자꾸 실패를 합니다...에러메세지는 다음과 같습니다.A problem occurred configuring root project 'springKotlinBasic'. > Could not resolve all files for configuration ':classpath'. > Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.0.0. Required by: project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.0.0 > No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.0.0 was found. The consumer was configured to find a runtime of a library compatible with Java 11, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '7.6' but: - Variant 'apiElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.0 declares a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares an API of a component compatible with Java 17 and the consumer needed a runtime of a component compatible with Java 11 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.6') - Variant 'javadocElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.0 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 11) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.6') - Variant 'mavenOptionalApiElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.0.0 declares a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares an API of a component compatible with Java 17 and the consumer needed a runtime of a component compatible with Java 11 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.6') - Variant 'mavenOptionalRuntimeElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.0.0 declares a runtime of a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component compatible with Java 17 and the consumer needed a component compatible with Java 11 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.6') - Variant 'runtimeElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.0 declares a runtime of a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component compatible with Java 17 and the consumer needed a component compatible with Java 11 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.6') - Variant 'sourcesElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.0 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 11) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.6')찾아보니 SpringBoot 3.0 부터는 Java17 버전을 사용해야 한다길래 spring initializr 에서도 java 17로 프로젝트를 구성했습니다. build.gradle.kts 는 다음과 같습니다import org.jetbrains.kotlin.gradle.tasks.KotlinCompile plugins { id("org.springframework.boot") version "3.0.0" id("io.spring.dependency-management") version "1.1.0" kotlin("jvm") version "1.7.21" kotlin("plugin.spring") version "1.7.21" kotlin("plugin.jpa") version "1.7.21" } group = "kotlin-spring" version = "0.0.1-SNAPSHOT" java.sourceCompatibility = JavaVersion.VERSION_17 configurations { compileOnly { extendsFrom(configurations.annotationProcessor.get()) } } repositories { mavenCentral() } dependencies { implementation("org.springframework.boot:spring-boot-starter-data-jpa") implementation("org.springframework.boot:spring-boot-starter-web") implementation("com.fasterxml.jackson.module:jackson-module-kotlin") implementation("org.jetbrains.kotlin:kotlin-reflect") implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8") compileOnly("org.projectlombok:lombok") runtimeOnly("com.h2database:h2") annotationProcessor("org.projectlombok:lombok") testImplementation("org.springframework.boot:spring-boot-starter-test") } tasks.withType { kotlinOptions { freeCompilerArgs = listOf("-Xjsr305=strict") jvmTarget = "17" } } tasks.withType { useJUnitPlatform() }에러 메세지를 확인해보면 제가 java 11을 사용하고 있다는 것 같은데 build.gradle에는 17로 잘 빌드된 것 같은데 뭐가 문제일까요... 도움이 필요합니다.

Clickin · Accepted Answer

target도 맞춰야하지만 로컬에 jdk 17이 존재하고 그걸로 실행해야지 빌드가 됩니다.build.gradle은 바이트코드 버전 타겟이지 그걸 보고 알아서 시스템에서 jdk17을 찾아서 쓰진 않습니다.intellij 쓰신다는 가정 하에 말씀드리면 project sdk를 17로 맞춰야지 intellij가 gradle을 17로 실행해줍니다.

mugwanmin · Answer

targetcompatibility도 17로 맞춰야하는거 아닌가요?

으랏차차차55 · Answer

스프링 부트 3.0을 선택하게 되면 다음 부분을 꼭 확인해야합니다.1. Java 17 이상을 사용 2. javax 패키지 이름을 jakarta로 변경오라클과 자바 라이센스 문제로 모든 javax 패키지를 jakarta로 변경

Zero-MG · Answer

Spring Boot 3.0.x 버전은 Java17 버전부터 가능합니다.우리가 흔히 쓰는 Java8 버전은 Spring Boot 2.x.x 버전을 사용하셔야 합니다.현재 안정화된 버전은 SpringBoot 2.7.x 버전 대를 사용하시면 됩니다.SpringBoot 2.x.x 버전 대는 Java8 ~ 16 까지 가능한 것으로 알고 있으니 참고해주시면 감사하겠습니다 :)

코틀린 기반 Springboot 3.0 빌드가 자꾸 실패합니다..

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