用ams进行数字电路和模拟电路混合仿真时,总是无法产生网表,查看netlist.log文件中,提示:could not set implicit tmp dirctory. path: .../ams/config/netlist/ihnl does not exist or is not readable/writable. 在terminal窗口提示: touch:cannot touch '.../ams/config/netlist/ams.env': No such file or directory请问是什么原因呢?请高手赐教,谢谢!