Powershell 术语'；Microsoft.SqlServer.Dac.BacPackage:：Load'；不被承认

我已经从一个azure sql db创建了一个bacpac，将它复制到blob，从blob将它带到本地

我在powershell中运行此代码

Add-Type -path "C:\Program Files (x86)\Microsoft SQL Server\140\DAC\bin\Microsoft.SqlServer.Dac.dll"
$restoredDatabaseName = 'AuditTest'
$bacpacFile = "H:\backup\audit\audit.bacpac"
$conn = "Data Source=.;Initial Catalog=master;Connection Timeout=0;Integrated Security=True;"

$importBac = New-Object Microsoft.SqlServer.Dac.DacServices $conn
$loadBac = Microsoft.SqlServer.Dac.BacPackage::Load($bacpacFile)
$importBac.ImportBacpac($loadBac, $restoredDatabaseName)

#Clean up
$loadBac.Dispose()

返回此错误：

Microsoft.SqlServer.Dac.BacPackage::Load : The term 'Microsoft.SqlServer.Dac.BacPackage::Load' 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.

我还尝试使用导入数据层向导，并得到以下错误

Could not load file or assembly 'Microsoft.SqlServer.Dac, Version=13.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. (Microsoft.SqlServer.Management.Dac.DacWizard)

这让我快发疯了，我发现了一些关于注册表黑客的东西，比如向导错误，对powershell一点帮助都没有

SQL Azure DB PRS1

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在Azure VM中还原到SQL 2016。

调用静态方法时，完整类型名称放在方括号中

因此，我们应该：

Add-Type -path "C:\Program Files (x86)\Microsoft SQL Server\140\DAC\bin\Microsoft.SqlServer.Dac.dll"
$restoredDatabaseName = 'AuditTest'
$bacpacFile = "H:\backup\audit\audit.bacpac"
$conn = "Data Source=.;Initial Catalog=master;Connection Timeout=0;Integrated Security=True;"

$importBac = New-Object Microsoft.SqlServer.Dac.DacServices $conn
$loadBac = [Microsoft.SqlServer.Dac.BacPackage]::Load($bacpacFile)
$importBac.ImportBacpac($loadBac, $restoredDatabaseName)

#Clean up
$loadBac.Dispose()

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非常感谢，我是powershell的新手，只是在复制我在网上找到的示例。现在试一试，它似乎还没有失败。它是有效的。太神了