title: Unable to use xbuild to build solution (Mono)
body: <p>When trying to use <code>xbuild</code> to build my solution through Mono on Mac and Linux (haven't tested under Windows yet), I get this strange error that I've been unable to find anywhere else.</p>
  
  <pre><code>Errors:
  
  /Users/macbook/git/DiscordSharp/DiscordSharp.sln (default targets) -&gt;
  (Build target) -&gt;
  /Users/macbook/git/DiscordSharp/DiscordSharp/DiscordSharp.csproj (default targets) -&gt;
  /Library/Frameworks/Mono.framework/Versions/4.2.2/lib/mono/4.5/Microsoft.CSharp.targets (CoreCompile target) -&gt;
  
      /Library/Frameworks/Mono.framework/Versions/4.2.2/lib/mono/4.5/Microsoft.CSharp.targets: error : Tool executable '/MSBuild/14.0/Bin/mcs.exe' could not be found
  
       1 Warning(s)
       1 Error(s)
  
  Time Elapsed 00:00:02.0472770
  MacBooks-MacBook:DiscordSharp macbook$ 
  </code></pre>
  
  <p>Interestingly enough, I am able to open the solution in MonoDevelop and build it that way. The projects in the solution target <code>Mono / .NET Framework 4.5</code>. I'm running Mono <code>4.2 SR1 (4.2.2.30)</code>. </p>
  
  <p>What could be causing this issue and in what way could I fix it? This problem prevented me from using TravisCI with this project and I have yet to find a fix for it. </p>