1.右键点击你的项目.选中properties 2.选中MyEclipse下的Project Facets里面的java 此时的版本号为1.5,修改 3.选中MyEclipse下的Project Facets里面的java 将版本号改为你的项目的版本号.我的是改成1.7的.点击apply --> ok 新建的maven项目出现红叉解决方案,报The superclass "javax.servlet.http.HttpServlet" was not found on the J
首先windows-show view-problems 根据地址查找错误 若提示: Description Resource Path Location TypeJava compiler level does not match the version of the installed Java project facet. iswustserver Unknown Faceted Project Problem (Java Version
eclipse项目上面有个红叉,但是没有任何地方有错误,clear,refresh,重启都试过了,依然没用, 后来我换了一个workspace,编译的时候提示: Description Resource Path Location Type The project was not built due to "Could not delete ' 意思是编译的文件删不掉,因为要重新编译嘛, 然后找度娘,才知道,我eclipse刚才关闭方式错误,导致进程没关,kill掉进程,clear一下,ok;