Could not load file or assembly ‘Microsoft.TeamFoundation.Client While Running Tests

25/07/2013

I know this sounds strange – What the relation between “’Microsoft.TeamFoundation.Client” and Running Tests from command line?

Visiting a customer I saw this error when the the customer tried to run Coded UI Tests using MsTest (Machine only with Test Agent):

Run has the following issue(s):
Failed to queue test run
‘XX@XXX-XXXTEAM-PC 2013-07-18 17:58:02′: Could not load
file or assembly ‘Microsoft.TeamFoundation.Client, Version=11.0.0.0, Culture=ne
utral, PublicKeyToken=b03f5f7f11d50a3a’ or one of its dependencies. The system c
annot find the file specified.

This is the line we’re running:

C:\Users\XXX>mstest /testcontainer:"D:\Versions\Release\CUIT1.dll"

I’ve also created a dummy test dll that open calc to make sure there is not reference to TeamFoundation.Client.dll (for any reason) but the error repeats.

image

This is a Bug that was fixed in Update 3 for Visual Studio 2012, so just install Update 3 on the Test Agent and the problem will disappear.

Download Update 3

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