Spring 공부 다시 시작
미루고 미루던 스프링 공부를 다시 시작하려고 굳은 마음을 먹고 영상을 틀었다.
영상을 따라 spring initializr에 들어가 스프링 프로젝트를 생성하고, inteliJ로 열어 빌드를 수행하니…
A problem occurred configuring root project
에러가 발생했다.
에러 메세지는 아래와 같다.
A problem occurred configuring root project 'hello_spring'.
> Could not resolve all files for configuration ':classpath'.
> Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.1.2.
Required by:
project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.1.2
> No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.1.2 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 '8.2.1' but:
- Variant 'apiElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.2 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 '8.2.1')
- Variant 'javadocElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.2 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 '8.2.1')
- Variant 'mavenOptionalApiElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.1.2 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 '8.2.1')
- Variant 'mavenOptionalRuntimeElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.1.2 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 '8.2.1')
- Variant 'runtimeElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.2 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 '8.2.1')
- Variant 'sourcesElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.1.2 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 '8.2.1')
* Try:
> 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.
원인
구글링을 해보니, 스프링부트 3.0부터는 JAVA 17부터 지원되는데, 로컬 환경 JAVA는 11이었다.
실제로 프로젝트 폴더 내의 build.gradle 파일을 확인해보면 JAVA 버전이 17임을 확인할 수 있다.
하지만 cmd 창을 통해 확인한 JAVA 버전은 11이다.
해결책
JAVA 버전 업데이트 포스트를 참고하여 17로 업데이트 하고, 재시작하면 아래와 같이 정상적으로 빌드가 완료된다.
