문제
$ ./gradlew bootRun
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project '...'.
> Could not resolve all files for configuration ':classpath'.
> Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.2.1.
Required by:
project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.2.1
> No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.2.1 was found. The consumer was configured to find a library for use during runtime, compatible
with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '8.5' but:
- Variant 'apiElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.2.1 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 runtim
e, compatible with Java 8
- Other compatible attribute:
- Doesn't say anything about org.gradle.plugin.api-version (required '8.5')
- Variant 'javadocElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.2.1 declares a component for use during runtime, and its dependencies declared externally[0;39[22;201H
m:
- 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 '8.5')
- Variant 'mavenOptionalApiElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.2.1 declares a library, packaged as a jar, and its dependencies declare
d 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 runtim
e, compatible with Java 8
- Other compatible attribute:
- Doesn't say anything about org.gradle.plugin.api-version (required '8.5')
- Variant 'mavenOptionalRuntimeElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.2.1 declares a library for use during runtime, packaged as a jar, a
nd 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 '8.5')
- Variant 'runtimeElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.2.1 declares a library for use during runtime, packaged as a jar, and its dependencies declared
- 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 '8.5')
* 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 3s
$ ./gradlew bootRun 를 실행하니 위와 같이 에러가 나면서 실행되지 않음
Gradle 빌드 시 전역 JAVA_HOME 을 참조하는데 내 PC의 JAVA_HOME은 Java 17이 아니라서 문제였음. 프로젝트마다 자바 버전이 달라 환경 변수 수정을 해도 다른 프로젝트에서 문제가 발생할 상황
해결
$ ./gradlew bootRun -Dorg.gradle.java.home=<java 17 경로>
스프링 부트 시작 시 참고할 java 경로를 명시해주면 해결됨
매번 옵션을 주기 귀찮으면 프로젝트 루트 디렉터리에 gradle.properties를 만들어 아래와 같이 옵션을 추가해주면 된다.
org.gradle.java.home=<java 17 경로>
만일 IntelliJ에서 build 시 동일한 오류가 나온다면 Settings > Build, Execution,
Deployment > ... > Gradle에 아래 부분이 Java 17인지 확인해볼 것
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