title: TFS 2017 Build Fails - can't publish test results
body: <p>TFS 2017 Build is failing on the Visual Studio Test task when it tries to publish tests result.  Using task version 2.* ... version 1.* was not working anymore (couldn't find path vstest.console.exe and acted strange when I put specific path)... how can I get this to work?  using tfs 2017.5 on the build server, and TFS Version 15.117.26714.0, using the latest agent from that.</p>
  
  <p><p>2017-09-21T20:29:13.5158841Z Results File: D:\agent1_work\1\s\Dev\20170305_MD_4.4\TestResults\TfsService_DEVBUILD5 2017-09-21 15_14_33.trx
  <BR>2017-09-21T20:29:14.5470386Z ##[warning]Vstest failed with error. Check logs for failures. There might be failed tests.
  <BR>2017-09-21T20:29:14.5470386Z ##[error]Error: C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TestWindow\vstest.console.exe failed with return code: 1
  <BR>2017-09-21T20:29:17.9532729Z ##[warning]Failed to publish test results: '', hexadecimal value 0x10, is an invalid character. Line 10256, position 10.
  <BR>2017-09-21T20:29:17.9532729Z ##[error]Vstest exited with return code: 1.</p>