Built and run an empty project in the editor on WSA platform, an exception appeared in the console.

Reproducible only on 5.1.0b5;

Repro steps:
1. Create an empty project;
2. Build and run from the editor on WSA platform. The project's VS solution will be generated, but a few errors appear in the console;

Error from the console:
Exception: Failed to build Visual Studio project. Output:
UnityInstallationDir "C:\Program Files\Unity 5.1.0b5\Editor".
UnityWSAPlayerDir "C:\Program Files\Unity 5.1.0b5\Editor\Data\PlaybackEngines\metrosupport".
UnityProjectDir "C:\Users\USER\Documents\New Unity Project 7".
Copying unprocessed assemblies...
UnityInstallationDir "C:\Program Files\Unity 5.1.0b5\Editor".
UnityWSAPlayerDir "C:\Program Files\Unity 5.1.0b5\Editor\Data\PlaybackEngines\metrosupport".
UnityProjectDir "C:\Users\USER\Documents\New Unity Project 7".
Copying unprocessed assemblies...
Running AssemblyConverter...
Running AssemblyConverter...
AssemblyConverter done.
NewUnityProject7.Windows -> C:\Users\USER\Documents\New Unity Project 7\asdfsdf\NewUnityProject7\NewUnityProject7.Windows\bin\x86\Master\Template.exe
AssemblyConverter done.
NewUnityProject7.WindowsPhone -> C:\Users\USER\Documents\New Unity Project 7\asdfsdf\NewUnityProject7\NewUnityProject7.WindowsPhone\bin\x86\Master\Template.exe
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v12.0\AppxPackage\Microsoft.AppXPackage.Targets(852,9): error MSB3819: Cannot find assembly "C:\Users\USER\Documents\New Unity Project 7\asdfsdf\Players\WindowsPhone81\x86\Master\UnityEngineDelegates.dll", which may contain managed resources that need to be included in this app package. Please ensure that this assembly exists. [C:\Users\USER\Documents\New Unity Project 7\asdfsdf\NewUnityProject7\NewUnityProject7.WindowsPhone\NewUnityProject7.WindowsPhone.csproj]
NewUnityProject7.Windows -> C:\Users\USER\Documents\New Unity Project 7\asdfsdf\NewUnityProject7\NewUnityProject7.Windows\AppPackages\NewUnityProject7.Windows_1.0.0.0_x86_Master_Test\NewUnityProject7.Windows_1.0.0.0_x86_Master.appx
NewUnityProject7.Windows -> C:\Users\USER\Documents\New Unity Project 7\asdfsdf\NewUnityProject7\NewUnityProject7.Windows\AppPackages\NewUnityProject7.Windows_1.0.0.0_x86_Master_Test\NewUnityProject7.Windows_1.0.0.0_x86_Master.appxsym
NewUnityProject7.Windows -> C:\Users\USER\Documents\New Unity Project 7\asdfsdf\NewUnityProject7\NewUnityProject7.Windows\AppPackages\NewUnityProject7.Windows_1.0.0.0_x86_Master.appxupload
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