The host type 'VS IDE' cannot be loaded for the following reason: The key 'VS IDE' cannot be found.

I created a VSPackage project in Visual Studio 2012. Added it to TFS and created a build definition. Changed "MSBuild Plattform" to "x86" and queued a new build. I also pointed out the testsettingsfile in the Build Definition.

All the tests that use the  [HostType("VS IDE")] attribute fails with the message "The host type 'VS IDE' cannot be loaded for the following reason: The key 'VS IDE' cannot be found.".

I have Visual Studio 2012.3 And the Visual Studio SDK installed on the Build Server.

Everything works great (All green) after i point out the testsettingsfile in Visual Studio when I build and run the tests on my developer machine.

Best Regards

Christer