SpringBoot로 프로젝트를 Build 하면서 다음과 같은 Error가 발생했다!!! Error는 다음과 같다! java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.slf4j.impl.Log4jLoggerFactory loaded from jar:file:/Users/user/workspace/aim/server/build/libs/aim-0.0.1-SNAPSHOT.jar!/BOOT-INF/lib/slf4j-log4j12-1.7.30.j..