[spring] gradle build fail

intellij로 spring 프로젝트를 신규 생성했는데 빌드가 실패하는 상황이 발생했습니다.

해당 프로젝트 버전은 하기와 같았습니다.

version

• spring-boot - 3.1.4
• java - 17

해당 에러

A problem occurred configuring root project 'token-bucket'.
> Could not resolve all files for configuration ':classpath'.
   > Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.1.4.
     Required by:
         project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.1.4
      > No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.1.4 was found. The consumer was configured to find a library for use during runtime, compatible with Java 11, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '8.3' but:
          - Variant 'apiElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.4 declares a library, packaged as a jar, and its dependencies declared externally:
              - Incompatible because this component declares a component for use during compile-time, compatible with Java 17 and the consumer needed a component for use during runtime, compatible with Java 11
              - Other compatible attribute:
                  - Doesn't say anything about org.gradle.plugin.api-version (required '8.3')
          - Variant 'javadocElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.4 declares a component for use during runtime, 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 '8.3')
          - Variant 'mavenOptionalApiElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.1.4 declares a library, packaged as a jar, and its dependencies declared externally:
              - Incompatible because this component declares a component for use during compile-time, compatible with Java 17 and the consumer needed a component for use during runtime, compatible with Java 11
              - Other compatible attribute:
                  - Doesn't say anything about org.gradle.plugin.api-version (required '8.3')
          - Variant 'mavenOptionalRuntimeElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.1.4 declares a library for use during runtime, 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 '8.3')
          - Variant 'runtimeElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.4 declares a library for use during runtime, 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 '8.3')
          - Variant 'sourcesElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.4 declares a component for use during runtime, 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 '8.3')
                  
      ...
      ....

 

원인

콘솔에 찍힌 에러를 번역하여 분석해보니 spring-boot 3.1.4의 호환성 문제였습니다. 이전 프로젝트 진행하며 gradle version과 java sdk version을 17 -> 11로 다운그레이드 한게 원인이었습니다.

Incompatible because this component declares a component, compatible with Java 17 and the consumer needed a component, compatible with Java 11

 

해결방법

java version을 11 -> 17로 변경하면 됩니다. local java version은 건들지 않고, intellij에서 build시에만 반영토록 version을 변경합니

다.

 

Settings(command +) -> Build, Execution, Deployment > Gradle > Gradle JVM 변경

 

번외

프로젝트의 호환성 문제가 아닌 순수하게 gradle의 호환성 문제이면 알맞는 java version을 맞춰주면 됩니다.