title: unable to locate nuget.exe when building webservice on appharbor
body: <p>I'm trying to deploy my webservice at appharbor using codeplex.
  After trying it the first time and doing some research I found out that I had to use NuGet so the references are being found..</p>
  
  <p>Now I only have 1 error left which I don't know how to solve</p>
  
  <pre><code>   "D:\temp\g3wyilvx.uln\input\WebService\Webservice.sln" (default target) (1) -&gt;
     "D:\temp\g3wyilvx.uln\input\WebService\Webservice\Webservice.csproj" (default target) (2) -&gt;
     (CheckPrerequisites target) -&gt; 
       D:\temp\g3wyilvx.uln\input\WebService\.nuget\nuget.targets(72,9): error : Unable to locate 'D:\temp\g3wyilvx.uln\input\WebService\.nuget\nuget.exe' [D:\temp\g3wyilvx.uln\input\WebService\Webservice\Webservice.csproj]
  0 Warning(s)
  1 Error(s)
  Time Elapsed 00:00:00.17
  </code></pre>
  
  <p>How am I suppose to solve this error ? 
  Any useful links that might help me in the future are also appreciated.</p>