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;…