我用mysql workbench 进行备份数据库时失败了。错误提示如下：
17:55:58 Restoring C:\backup\mysql\worx20161019.sql
Error executing task: [Errno 2] No usable temporary directory found in ['C:\Users\\x90T\x8c\xe1\AppData\Local\Temp', 'C:\Users\\x90T\x8c\xe1\AppData\Local\Temp', 'c:\temp', 'c:\tmp', '\temp', '\tmp', 'C:\Program Files\MySQL\MySQL Workbench 6.3 CE']
Error executing task local variable 'p1' referenced before assignment
17:55:58 Import of C:\backup\mysql\worx20161019.sql has finished
意思提示没有找到可用的临时文件夹 该怎么办？？导出数据库的时候也出现跟上面一样 的错误。求各位大神指导！！！
