title: compilationWin32Exception when building Windows Store App in unity3D
body: <p>Hello i am trying to build an windows store app in Unity3D(Unity 5.6.0f3). 
  When following these steps:</p>
  
  <p><a href="https://developer.microsoft.com/en-us/windows/mixed-reality/holograms_230" rel="nofollow noreferrer">https://developer.microsoft.com/en-us/windows/mixed-reality/holograms_230</a></p>
  
  <p>at the scanning step when you need to build the app i get the following 2 errors in unity:</p>
  
  <p>==</p>
  
  <pre><code>Could not start compilationWin32Exception: ApplicationName='C:\Program Files\Unity\Editor\Data\Tools\Roslyn\CoreRun.exe', CommandLine='"C:\Program Files\Unity\Editor\Data\Tools\Roslyn\csc.exe" /noconfig @Temp/UnityTempFile-5ed7a9a146122744fb2017a810d85b49', CurrentDirectory=''
  System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
  System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
  System.Diagnostics.Process.Start ()
  (wrapper remoting-invoke-with-check) System.Diagnostics.Process:Start ()
  UnityEditor.Utils.Program.Start (System.EventHandler exitCallback) (at C:/buildslave/unity/build/Editor/Mono/Utils/Program.cs:44)
  UnityEditor.Utils.Program.Start () (at C:/buildslave/unity/build/Editor/Mono/Utils/Program.cs:28)
  UnityEditor.Scripting.Compilers.MicrosoftCSharpCompiler.StartCompilerImpl (System.Collections.Generic.List`1 arguments, System.String argsPrefix) (at C:/buildslave/unity/build/Editor/Mono/Scripting/Compilers/MicrosoftCSharpCompiler.cs:168)
  UnityEditor.Scripting.Compilers.MicrosoftCSharpCompiler.StartCompiler () (at C:/buildslave/unity/build/Editor/Mono/Scripting/Compilers/MicrosoftCSharpCompiler.cs:190)
  UnityEditor.Scripting.Compilers.ScriptCompilerBase.BeginCompiling () (at C:/buildslave/unity/build/Editor/Mono/Scripting/Compilers/ScriptCompilerBase.cs:40)
  UnityEditor.HostView:OnGUI()
  </code></pre>
  
  <p>==</p>
  
  <pre><code>Error building Player because scripts have compile errors in the editor
  </code></pre>
  
  <p>==</p>
  
  <p>Does somebody know the solution to this problem?</p>