문제 Multiple annotations found at this line:- The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path- The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 라는 에러가 뜸 해결 1. 프로젝트명을 마우스 우 클릭하고 Build Path>Configure Build Path>Libraries 탭에서 Add Library.. 클릭 2. Server Runtime > Apache Tomcat vX.0 선택 3. Ok 버튼 누르면 오류 사라짐