title: TeamCity GIt lab merge request not triggering a build
body: <p>We are trying to have a build triggered on a merge request, but it's not happening, we followed <a href="http://www.nguyenquyhy.com/2017/10/how-to-integrate-teamcity-and-gitlab-ci/" rel="nofollow noreferrer">http://www.nguyenquyhy.com/2017/10/how-to-integrate-teamcity-and-gitlab-ci/</a>, with no luck.</p>
  
  <p>Is it feasible to trigger the build when a merge request is created ? </p>
  
  <p>We are using:
  “TeamCity 2017.2.3 (build 51047), effective release date 2017-11-27, currently running in the professional mode.
  Maximum number of authorized agents: 3 agents provided by professional edition license
  Maximum number of build configurations: 100 build configurations provided by professional edition license ”
  And gitLab as a hosted service.</p>