eclipse运行程序显示版本不对
错误码:cvc-attribute3:the value 2.5 of attribute version on element web-app is not valid with respect to its
cvc enumeration valid:value 2.5 is not facet-valid with respect to enumeration 2.4.it must be a value
你的环境是2.5版本的，要降低到2.4版本才能正常运行。