Could not load file or assembly while configuring Build vNext Agent

By : Tjeerd

When trying to configure a Build vNext agent I keep running into the following exception.

Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly 'VsoAgent, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A) ---> System.Security.SecurityException: Strong name validation failed. (Exception from HRESULT: 0x8013141A)

I already tried disabling strong name verification using "sn -Vr *,*" as sugested here:

But that does not solve the error. I tried the same on VM's with Visual Studio 2013, 2015 CTP5 & 2015 CTP6.

I followed this guide to configure the Build.vNext agent

EDIT: Some more info.

I'm trying to configure this on a VM in Azure. I've tried the default Visual Studio Templates from the Gallery. Which means VM's with Server 2012 R2.

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By : Tjeerd


After downloading the latest version of the file the problem went away. It seems to have been fixed in a newer release of the Agent.

By : Tjeerd

Did you "unlock" the .zip file before unpacking it?

On some OS's, specifically Windows 10, I had to right click on the downloaded zip and click "unlock" before unpacking.

If you then run the .\ConfigureAgent.ps1 it should work.

By : MrHinsh

This video can help you solving your question :)
By: admin