인프런 커뮤니티 질문&답변

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lynn1602

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자바와 스프링 부트로 생애 최초 서버 만들기, 누구나 쉽게 개발부터 배포까지! [서버 개발 올인원 패키지]

강의 준비 영상 - 스프링 프로젝트를 시작하는 첫 번째 방법

스프링부트 버전관련 질문

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안녕하세요 멘토님!

프로젝트앱을 다운받아 열었더니 빌드후에 다음과 같이 오류가 나타납니다.. 전에 프로젝트를 3.xx버전으로 했어서 이 경우에 java 17이상만 가능하기 때문에 java11을 사용하지 못해 나는 오류인것 같은데 어떻게 진행하면 될까요?

 

problem occurred configuring root project 'library-app'. > Could not resolve all files for configuration ':classpath'. > Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.0.1. Required by: project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.0.1 > No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.0.1 was found. The consumer was configured to find a runtime of a library compatible with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '7.5' but: - Variant 'apiElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.1 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 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'javadocElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.1 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 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'mavenOptionalApiElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.0.1 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 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'mavenOptionalRuntimeElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.0.1 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 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'runtimeElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.1 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 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'sourcesElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.1 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 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5')

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최태현님의 프로필 이미지
최태현
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안녕하세요, lynn1602님! 질문 주셔서 감사합니다! 😊

이런 경우는, 두 가지 방법이 있을 것 같아요!!

 

[1. 본 과정 자체를 3.x.x 버전으로 따라 한다]

  • 이렇게 되면 굳이 java 11을 설치할 필요가 없이 제공되는 예제 코드의 스프링 부트 버전을 올리고 진행하시면 될 것 같습니다!

  • 실제로 스프링 부트 2.x.x 와 3.x.x 의 차이가 본 강의에서 크게 나타나지는 않아서 강의를 따라하시는데 크게 무리가 없으실 거에요!!

 

image

[2. JDK 11을 설치하고 해당 프로젝트에서 JDK 11을 사용하도록 설정한다]

  • 52강을 참고해보시면! 새로운 JDK를 설치해서 IntelliJ에 어떻게 설정을 적용하는지 방법이 안내되어 있습니다!

  • 이 방법을 참고하셔서 JDK 11을 사용하도록 설정해 본 강의를 따라하실 수도 있을 것 같아요!!

 

저라면, 스프링 부트 버전에 따른 강의 내용의 차이가 거의 없기 때문에 조금 덜 번거로운 1번 과정을 사용할 것 같습니다. 스프링 부트의 버전을 어떻게 바꿀 수 있는지도 52강에서 다루고 있습니다.

답변이 도움이 되었으면 좋겠습니다. 감사합니다! 😊

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lynn1602

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