[BUG] Getting VBR session information Error

[Julien-grandin]

What happened?

Getting VBR session information Error

Steps To Reproduce

No response

VeeamNotify version

v2.1

PowerShell version

5.1

Veeam Backup & Replication build number

12.3.1.1139

Relevant log output

**********************
Début de la transcription Windows PowerShell
Heure de début : 20250603162513
Nom d'utilisateur : GRANDIN\Système
Utilisateur runAs :  GRANDIN\Système
Nom de la configuration : 
Ordinateur : SRV99 (Microsoft Windows NT 10.0.20348.0)
Application hôte : C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -ExecutionPolicy Bypass -File C:\VeeamScripts\VeeamNotify\Bootstrap.ps1
ID de processus : 9404
PSVersion: 5.1.20348.2849
PSEdition: Desktop
PSCompatibleVersions: 1.0, 2.0, 3.0, 4.0, 5.0, 5.1.20348.2849
BuildVersion: 10.0.20348.2849
CLRVersion: 4.0.30319.42000
WSManStackVersion: 3.0
PSRemotingProtocolVersion: 2.3
SerializationVersion: 1.1.0.1
**********************
2025-06-03T14:25:13.316Z [INFO] Transcript is being logged to 'C:\VeeamScripts\VeeamNotify\log\2025-06-03_16.25.13_Bootstrap.log'.
2025-06-03T14:25:13.376Z [INFO] Version: v2.1.0
2025-06-03T14:25:13.711Z [INFO] Configuration validated successfully.
2025-06-03T14:25:13.711Z [INFO] Attempting to retrieve job ID and session ID from the parent process.
2025-06-03T14:25:13.836Z [INFO] Getting VBR job details
2025-06-03T14:25:18.313Z [INFO] Getting VBR session information
Impossible de créer un objet de type «VBRSessionInfo». Impossible de convertir la valeur «
Veeam.Backup.Core.CBackupSession[]» du type «Veeam.Backup.Core.CBackupSession[]» en type «
Veeam.Backup.Core.CBackupSession».
Au caractère C:\VeeamScripts\VeeamNotify\resources\VBRSessionInfo.psm1:50 : 9
+     return [VBRSessionInfo]@{
+            ~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument : (:) [], RuntimeException
    + FullyQualifiedErrorId : ObjectCreationError
Impossible de créer un objet de type «VBRSessionInfo». Impossible de convertir la valeur «
Veeam.Backup.Core.CBackupSession[]» du type «Veeam.Backup.Core.CBackupSession[]» en type «
Veeam.Backup.Core.CBackupSession».
Au caractère C:\VeeamScripts\VeeamNotify\resources\VBRSessionInfo.psm1:50 : 9
+     return [VBRSessionInfo]@{
+            ~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument : (:) [], RuntimeException
    + FullyQualifiedErrorId : ObjectCreationError

Impossible d’appeler une méthode dans une expression Null.
Au caractère C:\VeeamScripts\VeeamNotify\Bootstrap.ps1:110 : 1
+ $vbrLogEntry = $vbrSessionLogger.AddLog('[VeeamNotify] Parsing job &  ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
Impossible d’appeler une méthode dans une expression Null.
Au caractère C:\VeeamScripts\VeeamNotify\Bootstrap.ps1:110 : 1
+ $vbrLogEntry = $vbrSessionLogger.AddLog('[VeeamNotify] Parsing job &  ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

2025-06-03T14:25:19.016Z [INFO] Bootstrap script for Veeam job '' (job 63f6e17d-755d-4e4c-9069-27768b6a9e42 session b6e06dba-bff4-4bcc-a5b0-393e984cc5d3) - Session & job detection complete.
Impossible d’appeler une méthode dans une expression Null.
Au caractère C:\VeeamScripts\VeeamNotify\Bootstrap.ps1:137 : 1
+ $vbrSessionLogger.UpdateSuccess($vbrLogEntry, '[VeeamNotify] Parsed j ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
Impossible d’appeler une méthode dans une expression Null.
Au caractère C:\VeeamScripts\VeeamNotify\Bootstrap.ps1:137 : 1
+ $vbrSessionLogger.UpdateSuccess($vbrLogEntry, '[VeeamNotify] Parsed j ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

2025-06-03T14:25:19.082Z [INFO] Launching AlertSender.ps1...
2025-06-03T14:25:19.082Z [ERROR] Failed to launch AlertSender.ps1: Impossible d’appeler une méthode dans une expression Null.
Impossible d’appeler une méthode dans une expression Null.
Au caractère C:\VeeamScripts\VeeamNotify\Bootstrap.ps1:151 : 2
+     $vbrSessionLogger.UpdateErr($vbrLogEntry, '[VeeamNotify] Failed t ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
Impossible d’appeler une méthode dans une expression Null.
Au caractère C:\VeeamScripts\VeeamNotify\Bootstrap.ps1:151 : 2
+     $vbrSessionLogger.UpdateErr($vbrLogEntry, '[VeeamNotify] Failed t ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

2025-06-03T14:25:19.110Z [INFO] Stopping transcript logging.
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Fin de la transcription Windows PowerShell
Heure de fin : 20250603162519
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[tigattack]

It looks like either Get-VBRBackupSession -Id <session id> or Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId(<session id>) are returning an array of sessions, which is certainly unexpected...

Either that, or I've messed something up, which is far less unexpected 😅 But as far as I can see, this does seem to be an unexpected result from one of the Veeam cmdlets/methods.

What's the job type? Agent or VM backup?

Please try the following commands and show me the result:

Import-Module Veeam.Backup.PowerShell -DisableNameChecking

# If VM backup:
$s = Get-VBRBackupSession -Id 'b6e06dba-bff4-4bcc-a5b0-393e984cc5d3'

# If Agent backup:
$s = Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId('b6e06dba-bff4-4bcc-a5b0-393e984cc5d3')

# Regardless of job type:
Write-Output $s.JobId.ToString()
Write-Output $s.GetType()

[Julien-grandin]

Thanks for your reply.

This is a Windows Agent Backup.

Here's the result of the commands you gave me:

Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId : Le terme «Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId» n'est pas reconnu comme nom d'applet de commande, 
fonction, fichier de script ou programme exécutable. Vérifiez l'orthographe du nom, ou si un chemin d'accès existe, vérifiez que le chemin d'accès est correct et réessayez.
Au caractère Ligne:6 : 6
+ $s = Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId('b6e06 ...
+      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Veeam.Backup.Co...iginalSessionId:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
 
63f6e17d-755d-4e4c-9069-27768b6a9e42

IsPublic IsSerial Name                                     BaseType                                                                                                                      
-------- -------- ----                                     --------                                                                                                                      
True     False    CBackupSession                           Veeam.Backup.Core.CBaseSession 

Traduction:

Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId: The term “Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId” is not recognized as a command applet name, 
function, script file or executable program. Check the spelling of the name, or if a path exists, check that the path is correct and try again.
At character Line:6: 6
+ $s = Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId('b6e06 ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo : ObjectNotFound: (Veeam.Backup.Co...iginalSessionId:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
 
63f6e17d-755d-4e4c-9069-27768b6a9e42

IsPublic IsSerial Name BaseType                                                                                                                      
-------- -------- ---- --------                                                                                                                      
True False CBackupSession Veeam.Backup.Core.CBaseSession 

[tigattack]

Apologies, that's my mistake, the command that failed should've been $s = [Veeam.Backup.Core.CBackupSession]::GetByOriginalSessionId('b6e06dba-bff4-4bcc-a5b0-393e984cc5d3') (note the missing [ at the beginning).

I find it very interesting that you still got some output in terms of the job ID & session object type, though... 🤔

Unfortunately, however, it hasn't proven my theory. I've managed to reproduce the issue, though, so I'll get a fix out ASAP.

[Julien-grandin]

At first I had no result, then I tested the other line for VM backup and I got this result.

Since then, I've been getting it even with the agent line.

I'll test tomorrow with the [ at begining

[tigattack]

This should be resolved; I've released v2.1.1 with the fix. Let me know if you have any further issues.

[Julien-grandin]

All Good now !

Thank you very much !