Error in step 27: Update script for service model: DevToolsService on machine: DevVM

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Posted on by Saran S

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Hi,

Tried to update the Dev vm from version .39 to .44, got the below error,

Error in step 27: Update script for service model: DevToolsService on machine: DevVM

bec of this error VS is not working - AOT objects and projects are not opening got the below error

tried all the solutions given in community but still the error is not solved,

Solution 1:

Go to Service Drive, on the cloud deployments it is k:\
Go into Deployable Packages Folder and Find the Package that failed, you can find it using date/time sorting.
Find the DevToolsService Scripts and there is a PowerShell Script named as AutoUpdateDevToolsService
Run this script manually and resume the update from the LCS.

Solution 2:

VSIX Installer

anyone have solution for this?

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Dynamics 365 Finance

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Sohaib Cheema 49,434 User Group Leader on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Remember facing it in the past.

What's the outcome of running the PS script ? Did it all go fine? I would normally run the PS in parts/chunks to understand, what it is doing at every step and verify the outcome.

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André Arnaud de Cal... 300,716 Super User 2025 Season 2 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Hi Saran,

Have you checked the error logs from the deployment about why it might fail? Note that your original version was quite old. Does this VM already have Visual Studio 2022 installed? If you keep having issues, the most easy would be deploying a new VM, connect to DevOps, get latest and continue. You might want to backup the database from this environment to be restored in the new VM.

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Saran S 323 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Hi Andre,

Have you checked the error logs from the deployment about why it might fail?

-Below is the error found in the log for your ref

"10/5/2025 8:19:16 AM - Catastrophic failure in extension loading: The method or operation is not implemented. with stack:
at VSIXInstaller.MemorySettingsManager.MemoryWritableSettingsStore.GetSubCollectionNames(String collectionPath)
at Microsoft.VisualStudio.ExtensionManager.Impl.Settings.ExtensionSettingsCache.<ReadExtensionsAndMarkMissingExtensionsForDeletionAsync>d__97.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ExtensionManager.Impl.Settings.ExtensionSettingsCache.<LoadInstalledExtensionsFromCacheAsync>d__90.MoveNext()
10/5/2025 8:19:16 AM - END: Processing extension pack
10/5/2025 8:19:16 AM - Microsoft.VisualStudio.ExtensionManager.NotInstalledException: The extension with ID 'DynamicsRainierVSTools-52924ab1-c4fa-47fc-a90d-a5d1e69986bb' is not installed to any currently installed products.
at VSIXInstaller.ExtensionService.GetUninstallableData(IStateData stateData, MarkupRawExtensionData vsixData, IEnumerable`1& targetSkus)
at VSIXInstaller.ExtensionService.ComputeUninstallableExtensions(IStateData stateData, IDictionary`2 skuDataMapping, IList`1 uninstallableVsixIds)
at VSIXInstaller.App.Initialize(Boolean isRepairSupported)
at VSIXInstaller.App.OnStartup(StartupEventArgs e)
"

Does this VM already have Visual Studio 2022 installed?

-Yes, but not used.

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André Arnaud de Cal... 300,716 Super User 2025 Season 2 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Hi Saran,

The error is mentioning that an extension is missing. As mentioned you are updating a very old environment. It will be most likely quicker to deploy a new VM instead of trying to solve the current failure.

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Saran S 323 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Hi Andre,

Before moving to New VM, i need to checkin all my pending works right but for that the Problem is VS is not opening, so try to resolve the error and

Just now found the error in Pre-servicing folder

Error - "The specified module 'C:\Program Files\Microsoft Security Client\MpProvider' was not loaded because no valid module file was found in any module directory."

is any solution for this error?

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Anton Venter 20,343 Super User 2025 Season 2 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

@Saran S using the latest deployment/update packages to update F&O on the VM also requires updating Visual Studio to version 2022 as well. But, that includes the add-in for F&O as well. Open Visual Studio 2022 on the VM, install the F&O add-in manually and then retry the update package.

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Saran S 323 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Hi Anton,

1. VS add-in is installed

2. Got the below error while opening the VS after update issue

3.Project is not opening

is any other way to fix this?

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André Arnaud de Cal... 300,716 Super User 2025 Season 2 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Hi Saran,

One recommendation before a next update. Ensure you check in or shelf your changes before installing an update.

You can copy the package directories of your models. After getting latest on a new VM, you can then overwrite the file contents as workaround.
You can then first deploy a new VM and after it is working, delete the old one.

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Saran S 323 on at

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Error in step 27: Update script for service model: DevToolsService on machine: DevVM

Hi,

Thanks for all your support, now I fixed the issue by following the below blog:

https://ams-support.protiviti.com/support/solutions/articles/67000743881-update-deployment-failed-due-to-missing-mpprovider-module

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