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
eclipse报An error has occurred,See error log for more details. java.lang.NullPointerException错误
原文：http://www.cnblogs.com/hoge/p/4942349.html