eclipse报An error has occurred,See error log for more details. java.lang.NullPointerException错误

eclipse报An error has occurred,See error log for more details. java.lang.NullPointerException错误，解决办法：

在"开始"-->"运行"---->"cmd"进入命令提示行后,再进入eclipse安装目录的eclipse文件夹,
         然后输入eclipse -clean即可