Add-DbaAgDatabase - Conversion error

[brunobbc]

Environmental information

SQL Server:

sql Microsoft SQL Server 2016 (SP2) (KB4052908) - 13.0.5026.0 (X64) Mar 18 2018 09:11:49 Copyright (c) Microsoft Corporation Developer Edition (64-bit) on Windows Server 2016 Standard 10.0 (Build 14393: ) (Hypervisor)
/* REPLACE WITH output of @@Version */

### Report

<!--
Things to consider:
- Conversions errors when try to run ADD-DbaAGDatabase
--> 

#### Errors Received

<!-- 
WARNING: [17:44:39][Add-DbaAgDatabase] Failure | Cannot convert the "[SVR2]" value of type
"Microsoft.SqlServer.Management.Smo.Server" to type "Microsoft.SqlServer.Management.Smo.Server".
Fin du script : 2019-06-13 5:44:39 PM

-->

#### Steps to Reproduce

<!--
$InstanceName = $env:computername
$AvailabilityGroup = Get-DbaAvailabilityGroup -SqlInstance $InstanceName | select -ExpandProperty Name
$PrimaryServer = "SVR1"
$SecondaryServer = "SVR2"
$Database = "Test"
$SharedPath = "\\" + $PrimaryServer + "\E$\MSSQL\Backup"

$DatabaseBackupFile = $SharedPath + "\" + $Database + ".bak"
$LogBackupFile = $SharedPath + "\" + $Database + ".trn"

Backup-SqlDatabase -Database $Database -BackupFile $DatabaseBackupFile -ServerInstance $PrimaryServer -Verbose
Backup-SqlDatabase -Database $Database -BackupFile $LogBackupFile -ServerInstance $PrimaryServer -BackupAction Log -Verbose

Restore-SqlDatabase -Database $Database -BackupFile $DatabaseBackupFile -ServerInstance $SecondaryServer -NoRecovery -Verbose 
Restore-SqlDatabase -Database $Database -BackupFile $LogBackupFile -ServerInstance $SecondaryServer -RestoreAction Log -NoRecovery -Verbose

Add-DbaAgDatabase -AvailabilityGroup $AvailabilityGroup -Database $Database -Secondary $SecondaryServer -SharedPath $SharedPath -SqlInstance $PrimaryServer -UseLastBackup
-->

#### Expected Behavior

<!--
I expect to have a DB syncronized and added to the secondary.
-->

#### Actual Behavior

<!--
Primary Server = DB is in sycronized State and availability Database is created (Correct !!)
Secondary = DB is in restoring state and availability Database is created  with error. 
-->

[potatoqualitee]

thanks for the report. unfortunately, it was not completed properly, specifically i dont know what version of dbatools you are using. please ensure you are on the latest version because some things have been fixed recently. Please list what version you are using by using code included in the bug report template.

[potatoqualitee]

The fix is included in #5753 which will be released with dbatools 1.0 on Thursday morning 💯