在Powershell中使用Backup-SqlDatabase时出现“TypeData错误”错误

Question

由于错误，我无法运行Backup-SqlDatabase。 我得到以下内容：

PS C:\Users\Mik> Backup-SqlDatabase
Backup-SqlDatabase : The 'Backup-SqlDatabase' command was found in the module 'SqlServer', but the module could not be
loaded. For more information, run 'Import-Module SqlServer'.
At line:1 char:1
+ Backup-SqlDatabase
+ ~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Backup-SqlDatabase:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CouldNotAutoloadMatchingModule

我按照建议运行Import-Module并得到：

PS C:\Users\Mik> Import-Module SqlServer
Import-Module : The following error occurred while loading the extended type data file: Error in TypeData
"Microsoft.SqlServer.Management.Smo.NamedSmoObject": The member DefaultKeyPropertySet is already present.
Error in TypeData "Microsoft.SqlServer.Management.Smo.NamedSmoObject": The member DefaultDisplayPropertySet is already
present.
Error in TypeData "Microsoft.SqlServer.Management.Smo.NamedSmoObject": The member DefaultDisplayProperty is already
present.
At line:1 char:1
+ Import-Module SqlServer
+ ~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Import-Module], RuntimeException
    + FullyQualifiedErrorId : FormatXmlUpdateException,Microsoft.PowerShell.Commands.ImportModuleCommand

我最近在2012年安装了SQL Server 2016，我不确定这是否导致了这个问题，因为我以前没有使用过任何这些Powershell命令。

Answer 1

确保您没有导入SQLPS ，它是2016年之前安装SQL Server的模块.SqlServer是与SQL Server 2016关联的模块，可用于以前的SQL版本。 您可以在http://www.mikefal.net/2016/07/12/out-with-the-sqlps-in-with-the-sqlserver/找到一个很好的解释。