title: Visual Studio 2017 Code Style "Errors" do not prevent build?
body: <p>I've set various C# Code Style rules to generate errors, and while violations show up as errors in the IDE (both in the error list and the text editor), actual builds still succeed.</p>
  
  <p>Can anyone confirm this? I've tested on VisualStudio/15.0.0+26228.9 under both the Community (at home) and Enterprise (at work) editions. And I can't get any build to break due to a code style violation.</p>
  
  <p>I've even tried to use .editorconfig, and builds still go through...</p>