TFS 2015:No agent could be found with the following capabilities: msbuild, visualstudio, vstest

Question

We have recently upgraded to TFS 2015 Update 4. When I tried to do a build, I am getting the following error:

There are issues with the request or def

Answer 1

You could double check if you are missing some capabilities such as VSTEST_15.0 for the build agent.

Settings- Agent Queues- Agent Pool - Agent- Capabilities

If the test related capabilities are missing, you could try to reregister the build agent. Or manually add the capabilitie by select +.