Deployment is out of date due to changes in the underlying project contents. You'll need to manually 'Redeploy' the project to update the deployed archive.
Missing web.xml deployment descriptor in WEB-INF folder
myeclipse2014 tomcat 7.0
剛安裝的時候好好的 幾天後就在部署項目時不能部署 大學生初學 請求幫助
他說你更改過文件內容，你再重新build 部署一下項目；還有，說你web.xml在WEB-INF文件夾中缺失，你去核實一下
