java.lang.IllegalArgumentException: Invalid ‘log4jConfigLocation’ parameter: class path resource [log4j.properties] cannot be resolved to URL because it does not exist

tomcat 서버 실행하면서 발생된 오류다.

심각: Exception sending context initialized event to listener instance of class org.springframework.web.util.Log4jConfigListener

java.lang.IllegalArgumentException: Invalid 'log4jConfigLocation' parameter: class path resource [log4j.properties] cannot be resolved to URL because it does not exist
           at org.springframework.web.util.Log4jWebConfigurer.initLogging(Log4jWebConfigurer.java:156)
           at org.springframework.web.util.Log4jConfigListener.contextInitialized(Log4jConfigListener.java:45)
           at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4992)
           at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5490)
           at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
           at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
           at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
           at java.util.concurrent.FutureTask.run(FutureTask.java:262)
           at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
           at java.lang.Thread.run(Thread.java:745)

8월 22, 2019 10:45:07 오전 org.apache.catalina.startup.Catalina start
정보: Server startup in 10886 ms

해결 : 이클립스를 재실행하였더니 처리되었다. ㅡ.,ㅡ;;