Snapin无法加载，Cmdlet现在针对错误的PowerShell版本，如何发生这种情况？

Question

我继承了一个服务器-2008 SharePoint-2010开发环境，SharePoint Snapin无法加载;警告...

Add-PSSnapin : Incorrect Windows PowerShell version 3.0. Windows PowerShell 
version 2.0 is supported in the current console.

.

我跟随所有记录的补救措施：

• 卸载WMF 3.0和KB2506146
• 执行powershell.exe与“-version 2.0”参数
• 从PowerShell Config 中删除对.NET 4.0的引用

  Snapin无法加载和仍然相同的警告“Windows PowerShell版本不正确”，因此我确认了该版本。它看起来很好...

  PS C:\Users\Administrator> $PSVersionTable.PSVersion
  
  Major  Minor  Build  Revision
  -----  -----  -----  --------
  2      0      -1     -1
  

  .

  所以我检查了snapin ...

  PS C:\Users\Administrator> Get-PSSnapIn -Registered
  
  Name        : Microsoft.SharePoint.PowerShell
  PSVersion   : 3.0
  Description : Register all administration Cmdlets for Microsoft SharePoint Server
  

  .

  psversion是3.0 ??? Snapin的PSVersion在所有其他机器上读取1.0。由于4.0 .NET Framework，不会在3.0中运行。我怎么能改变这件事？这样它目标的powershell兼容版本？ 感谢您提供的任何帮助。

Answer 1

The registry determines the level of PS compatibility, in my case the value was 3.0, it should be 1.0. I corrected this value by editing the following key:

HKLM\SOFTWARE\Microsoft\PowerShell\1\PowerShellSnapIns\Microsoft.SharePoint.PowerShell\PowerShellVersion

The initial cause of the problem was the installation of the Windows Management Framework 3.0 which installs with it PowerShell. Even after uninstalling, the registry remained incorrect and I had to edit the registry with the information above.