出现如下信息：
Fatal server error:
Server is already active for display 0
if this server is no longer running,remove /tmp /.x0-lock and start again.
When reporting a problem related to a server crash,please send the full server output,not just the last message.
Please report problems to [email protected].
本人是第一次使用虚拟机和linux,请高手们详细回答,谢谢！
