“Error in TypeData” errors when using Backup-SqlDatabase in Powershell

Question

I'm unable to run Backup-SqlDatabase due to errors. I get the following:

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

I run Import-Module as suggested and get this:

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

I recently installed SQL Server 2016 alongside 2012, am not sure if this has contributed to the problem as I had not used any of these Powershell commands prior.

Answer 1

Make sure you are not importing SQLPS which is the module installed with SQL Server prior to 2016. SqlServer is the module associated with SQL Server 2016 and can be used for previous SQL versions. You can find a good explanation at http://www.mikefal.net/2016/07/12/out-with-the-sqlps-in-with-the-sqlserver/