title: Running TFS Build with C# 6.0 features
body: <p>I just recently began using the <code>nameof()</code> operator of C# 6.0 in my projects. Now (upon check-in, duh...) I (or better: the build agent) refused to build the project (which was compiling locally just fine) because it could not find the <code>nameof()</code> expression.</p>
  
  <p>I began installing VS 2015 on the build controller as well as the TFS server itself, but to no avail. How can I get my TFS 2013 Update 5 to build projects with C# 6.0 features?</p>
  
  <p>I already thought of editing the BuildProcessTemplate, but we're using the default template all the way through all our build definitions and I even didn't know if this was the right way to go.</p>