Cannot Deploy SSIS project. Error: Could not load type Microsoft.Internal.VisualStudio.Shell.Interop.IVsCustomTelemetryService from assembly Microsoft.Internal.VisualStudio.Interop PublicKey

Question

Cannot Deploy SSIS project. Error: Could not load type Microsoft.Internal.VisualStudio.Shell.Interop.IVsCustomTelemetryService from assembly Microsoft.Internal.VisualStudio.Interop PublicKey

Barr, David 10

I get this error trying to deploy a package after installing VS2026 March 2026 release Version 18.4.2. All though it does deploy the error pops up after every step during deployment. I tried a repair, I tried removing the ComponentModelCache folder and restarting with no success.

Bryan Dunlap 0 Reputation points

2026-04-02T15:15:10.3666667+00:00

I'm just tagging myself on this because I have the same problem, and I don't really have the option to revert back to visual studio 2022. I build this solution in visual studio 2026 and it never had any problems until I did the march 2026 update. I'm ok with it throwing the error because it deploys successfully. It's just annoying that it's triggered after each step during deployment.
Guy Barrett 0 Reputation points

2026-04-03T15:28:00.8233333+00:00

Tagging myself as I also have the same problem since the last VS2022 update, so it's not isolated to 2026. I think I read somewhere that MS is dropping all support for SSIS soon as well. I don't what else we're supposed to use after that as my experience with MS Fabric hasn't been great despite taking the DP-700 course.

Has anybody managed to fix this yet?

1 answer

Your answer

Bryan Dunlap 0 Reputation points

2026-04-02T15:15:10.3666667+00:00

I'm just tagging myself on this because I have the same problem, and I don't really have the option to revert back to visual studio 2022. I build this solution in visual studio 2026 and it never had any problems until I did the march 2026 update. I'm ok with it throwing the error because it deploys successfully. It's just annoying that it's triggered after each step during deployment.
Guy Barrett 0 Reputation points

2026-04-03T15:28:00.8233333+00:00

Tagging myself as I also have the same problem since the last VS2022 update, so it's not isolated to 2026. I think I read somewhere that MS is dropping all support for SSIS soon as well. I don't what else we're supposed to use after that as my experience with MS Fabric hasn't been great despite taking the DP-700 course.

Has anybody managed to fix this yet?

Answer 1

Yitzhak Khabinsky 27,101

Hi @Barr, David

I would recommend reverting back to VS2022.

VS2026 is too raw, more precisely its SQL Server Integration Service extension.

Workaround (bypass Visual Studio UI)

You can deploy the built .ispac outside Visual Studio using the Integration Services Deployment Wizard. This avoids the VS shell and the extension entirely:

Build your SSIS project to produce an .ispac (from VS: Build → Build or Rebuild).
Run the wizard directly: ISDeploymentWizard.exe (typically under C:\Program Files\Microsoft SQL Server\16x\DTS\Binn\ or c:\Program Files\Microsoft SQL Server Management Studio 22\Release\Common7\IDE\CommonExtensions\Microsoft\SSIS\170\Binn\) and point it at your .ispac.

Barr, David 10 Reputation points

2026-03-27T18:36:55.0166667+00:00

Yes I can do this, just really wanted to post this so MS was aware there is an issue, the prior version works and this version deploys with no issues but throws the error every step of the way.
Lakshmi Narayana Garikapati 1,160 Reputation points Microsoft External Staff Moderator

2026-04-06T09:29:55.19+00:00

Hi Barr, David

Following up to confirm if the earlier responses addressed your query. If not, please share your questions and we'll assist further

Thanks,

Lakshmi

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Cannot Deploy SSIS project. Error: Could not load type Microsoft.Internal.VisualStudio.Shell.Interop.IVsCustomTelemetryService from assembly Microsoft.Internal.VisualStudio.Interop PublicKey

1 answer

Workaround (bypass Visual Studio UI)

Your answer