[ Spring boot] Could not resolve all files for configuration compileClasspath

기본만 있었던 dependency에 redis를 추가해야할 일이 생겼다

 

build.gradle 에 추가해준다

 
 dependencies {
 ...
 implementation 'org.springframework.boot:spring-boot-starter-data-redis-reactive'
 implementation 'org.springframework.session:spring-session-data-redis'
 ...
 }
 

추가해 준 후 version이 없다는 에러가 났다

그 위에 plugins을 추가해준다

 

 
 plugins {
    id 'org.springframework.boot' version '2.3.3.RELEASE'
 }
   
 dependencies {
 ...
 implementation 'org.springframework.boot:spring-boot-starter-data-redis-reactive'
 implementation 'org.springframework.session:spring-session-data-redis'
 ...
 }
 
 

 

이렇게 plugins으로 추가하면 이 버전에 맞는 버전들로 하위 dependency 버전을 제어할 수 있다

 

이제 되겠지

 

 

 $ gradle build
 > Task :iot_gw:compileJava FAILED

 During the build, one or more dependencies that were declared without a version failed to resolve:
    org.springframework.session:spring-session-data-redis:
    org.springframework.boot:spring-boot-starter-data-redis-reactive:
 
 Did you forget to apply the io.spring.dependency-management plugin to the iot_gw project?
 
 
 FAILURE: Build failed with an exception.
 
 * What went wrong:
 Execution failed for task ':iot_gw:compileJava'.
 > Could not resolve all files for configuration ':iot_gw:compileClasspath'.
   > Could not find org.springframework.boot:spring-boot-starter-data-redis-reactive:.
     Required by:
         project :iot_gw
   > Could not find org.springframework.session:spring-session-data-redis:.
     Required by:
         project :iot_gw
 
 * 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

 Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
 Use '--warning-mode all' to show the individual deprecation warnings.
 See https://docs.gradle.org/6.5/userguide/command_line_interface.html#sec:command_line_warnings

 BUILD FAILED in 2s
 1 actionable task: 1 executed
 

 

칼같이 에러가 났다

구글링을 해도 plugins를 하라는 말밖에 하지 않았다

 

자세히 읽어봐도 모르겠는데 forget..? 뭘 잊었냐고 묻는다

봤더니 plugin 중에 io.spring.dependency-management 를 적용했냐는 물음이 있다

재빨리 적용해본다

 

 
 plugins {
    id 'org.springframework.boot' version '2.3.3.RELEASE'
    id 'io.spring.dependency-management' version '1.0.9.RELEASE'
 }
   
 dependencies {
 ...
 implementation 'org.springframework.boot:spring-boot-starter-data-redis-reactive'
 implementation 'org.springframework.session:spring-session-data-redis'
 ...
 }
 
 

 

 

그 후 빌드해보면 제대로 빌드가 되는 것을 확인할 수 있다

 
 $ gradle build

 BUILD SUCCESSFUL in 12s
 3 actionable tasks: 1 executed, 2 up-to-date