Can't upload OS image using Add-AzVhd cmdlet

Question

_{Thursday, May 9, 2019 7:45 PM}

Hi,

I'm trying to upload a custom OS image that I can use to install new VM's, I've been following this guide: https://docs.microsoft.com/en-us/azure/virtual-machines/windows/upload-generalized-managed

When I'll get to the point where I'm supposed to upload the .vhd file with<code class="lang-powershell" data-author-content="$rgName = "myResourceGroup? $urlOfUploadedImageVhd = "https://mystorageaccount.blob.core.windows.net/mycontainer/myUploadedVHD.vhd" Add-AzVhd -ResourceGroupName $rgName -Destination $urlOfUploadedImageVhd ` -LocalFilePath ?C:\Users\Public\Documents\Virtual hard disks\myVHD.vhd? ?>Add-AzVhd, I'll get an error saying: "Add-AzVhd : Could not load file or assembly 'System.ServiceModel.Primitives, Version=4.2.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified."

OS Name: Microsoft Windows 10 Pro

OS Version: 10.0.17763 N/A Build 17763

PSVersion: 5.1.17763.316

Any idea how to proceed?

Thank you!

<code class="lang-powershell" data-author-content="$rgName = "myResourceGroup? $urlOfUploadedImageVhd = "https://mystorageaccount.blob.core.windows.net/mycontainer/myUploadedVHD.vhd" Add-AzVhd -ResourceGroupName $rgName -Destination $urlOfUploadedImageVhd ` -LocalFilePath ?C:\Users\Public\Documents\Virtual hard disks\myVHD.vhd? ?>

All replies (10)

_{Friday, May 31, 2019 9:28 PM ✅Answered}

Providing an update on this: 

Looks like the assembly needed for this cmdlet was left out of recent versions.  This issue has been raised with the appropriate team so we should see that fixed in a future release.  For now, here is a workaround we can try:

1 - Install Az.Accounts version 1.4.0 in order to get the correct assemblies:

Install-Module Az.Accounts -RequiredVersion 1.4.0 -Force

2 - identify the module path location:

Import-Module Az.Accounts -RequiredVersion 1.4.0 -Force

(Get-Module Az.Accounts | ? { $_.Version -eq '1.4.0' }).Path

3 - Load the assemblies via PowerShell from the Az.Accounts module path (under folder PreloadAssemblies):

[System.Reflection.Assembly]::LoadFrom('C:\Program Files\WindowsPowerShell\Modules\Az.Accounts\1.4.0\PreloadAssemblies\System.Private.ServiceModel.dll') [System.Reflection.Assembly]::LoadFrom('C:\Program Files\WindowsPowerShell\Modules\Az.Accounts\1.4.0\PreloadAssemblies\System.ServiceModel.Primitives.dll')

4 - Retry the Add-AzVhd cmdlet.

The Dev team is looking to push a fix for this sometime next week. 

_{Thursday, May 9, 2019 9:07 PM}

Try updating your PowerShell module. The lastest version is now 6 and uses Az instead of AzureRM. So there could be some issues there. 

To install the new version, open a PowerShell window as an Administrator and run the following

Get-Module Az

Install-Module Az -AllowClobber

/en-us/powershell/azure/install-az-ps?view=azps-2.0.0

Then try rerunning the commands and let me know the result. 

_{Friday, May 10, 2019 4:49 PM}

I am having the same exact issue. Trying to upload Windows 10 Enterprise VHD. 

I already tried the Install-Module Az -AllowClobber

_{Friday, May 10, 2019 5:18 PM}

Can you share the full script with outputs as well? 

_{Friday, May 10, 2019 8:38 PM}

I ended up uploading the image directly using the Azure portal. It worked and then I was able to create the VM. I got the same error even after I "updated" my module.

_{Sunday, May 12, 2019 5:28 PM}

Picture says more than 1000 words etc. :)

Here is what happens:

You said that "The lastest version is now 6 and uses Az instead of AzureRM. So there could be some issues there." - So isn't Add-AzVhd a Az command then? I thought that the Az prefix would explicitely tell me what are the new Az  cmdlets? :O

_{Monday, May 13, 2019 9:24 PM}

Interesting. I see no reason why it shouldn't work. I have tested it and the vhd uploads. Good you can upload via the portal to at least move on. 

If you want to dig deeper into this, I would say it is best to open a technical support ticket. If you don't have the ability to open a technical support ticket you can email me at [email protected] and provide me with your AzureSubscriptionID and link to this thread. I can then enable you for that support request. 

_{Friday, May 17, 2019 8:44 AM}

Hi,

this can probably fix the issue:
[System.Reflection.Assembly]::LoadFrom("C:\Program Files\WindowsPowerShell\Modules\Az.Accounts\1.3.1\PreloadAssemblies\System.ServiceModel.Primitives.dll")

Maybe you need to adjust the path to the dll.

We have the exact same issue since we changed from AzureRm command to Az module.

Regards,
Klaus

_{Friday, May 31, 2019 6:59 PM}

Any update on this thread?

If a answer was useful, please remember to upvote and "Mark as answer" so others in the community can easily find it. 

_{Wednesday, June 5, 2019 2:39 PM}

Has there been any update on this, I still appear to be getting the error.  I did update the Az PS modules but Az.Accounts did not appear to have an update.  I suspect this is causing another issue I am seeing.  When trying to create a new image (New-AzImage) using the vhd's uploaded using the add-AzVHD command, I always get the error "New-AzImage : Only blobs formatted as VHDs can be imported."; however if I upload the VHD's through Storage Explorer and then do the New-AzImage it works fine.  Please advise.  Thanks. 

Andrew