你想做什么这是从Visual Studio代码中？如果是，请检查
此主题否则尝试从Powershell ISE中运行相同的内容机器。如果有效，请告诉我们。 

Are you trying to do this from within Visual studio code ? If yes please check this thread else try to run the same from within the Powershell ISE from the machine. Let us know in case that works.