Spring 프로젝트 진행 중에 다음과 같은 오류가 발생 하였다. Unable to find method 'org.gradle.api.tasks.SourceSet.getCompileConfigurationName()Ljava/lang/String;'. Possible causes for this unexpected error include: Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.) Re-download dependencies and sync project (requires network) The state of a Gradle build process (daemon)..