[eclipse] 프로젝트 클린 시 cleaning selected projects has encountered a problem

cleaning selected projects has encountered a problem 에러 디테일 메시지가 Errors running builder 'Validation' on project라면

C:\[workspace]\.metadata\.plugins 하위의 org.eclipse.wst.validation을 삭제

출처: http://blog.naver.com/PostView.nhn?blogId=soogooky&logNo=220773106400&parentCategoryNo=&categoryNo=1&viewDate=&isShowPopularPosts=true&from=search