最后得出:最根本原因是电脑防火墙开启,导致vivado的仿真出错:开始右键->控制面板->系统和安全->Windows防火墙->启动或关闭防火墙->我关闭了共用网络设置(没关闭专用网络设置)->确认就可以啦(下文写的都是换license的步骤,没啥用)。
问题陈述:
在vivado进行仿真时,报错: [USF-XSim-62] 'simulate' step failed with errors. Please check the Tcl console or log files for more information.
如下:




解决方法:
这个问题根本原因是license文件过期造成的。所以只需要将license文件换成可用的license文件就可以。注意:换掉之后一定要关机重启才能用。
具体步骤如下:
1、打开电脑开始-->Xilinx Design Tool-->Vivado License Manager 2015.2,得到如下窗口:


2、点击左边按钮:Load License,得到如下图:


3、点击Copy License按钮,打开你新下载的license文件,并点击“确认”。


4、点击左侧的View License Status按钮,点击Refresh按钮进行更新。


5、关机重启电脑,重新运行vivado,然后仿真就可以啦。(新的license文件在链接中下载)
http://download.csdn.net/download/lanhuamanjianghong/10170314