我在Visual Studio 2012中的程序包管理器控制台初始化期间收到以下错误。我在Windows 8上。我在网上找不到任何信息，有没有人遇到同样的问题并找到解决方案，请让我知道。
由于
The following error occurred while loading the extended type data file: Microsoft.PowerShell.Core, C:\Windows\SysWOW64\WindowsPowerShell\v1.0\types.ps1xml(2977) : Error in type "System.Security.AccessControl.ObjectSecurity": Exception: The getter method should be public, non void, static, and have one parameter of type PSObject.
The term 'Get-ExecutionPolicy' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
答案 0 :(得分：0)
机器上安装了哪个版本的Visual Studio？ 您是否尝试将其作为管理员运行？ 您也可以按照@ Powershell runtime
中的说明尝试启用Net3.5