이클립스로 알고리즘 문제만 풀다가 오랜만에 웹 프로젝트를 돌리려고 했는데 문제가 발생했다. https://coding-log.tistory.com/187?category=981518 [Error] The absolute uri: [http://java.sun.com/jsp/jstl/core] cannot be resolved in either web.xml or the jar files deployed wit The absolute uri: [http://java.sun.com/jsp/jstl/core] cannot be resolved in either web.xml or the jar files deployed with this application] with root cause org.apache...