To reproduce:
1. Open attached project
2. Go to File -> Build Settings
3. Select Universal 10 SDK
4. Click Build and Run

Actual result: errors in the Console window
Exception: Failed to build Visual Studio project using arguments 'C:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild.exe "C:\Users\Student\Desktop\w10\New Unity Project 9.sln" /nologo /maxcpucount /p:Configuration=Master /p:Platform=x86 /p:SolutionDir="C:\\Users\\Student\\Desktop\\w10\\" /t:Build /clp:Verbosity=minimal'.
Output: UnityInstallationDir "C:\Program Files\Unity\Unity 5.4.0b5\Editor".
UnityWSAPlayerDir "C:\Program Files\Unity\Unity 5.4.0b5\Editor\Data\PlaybackEngines\MetroSupport".
UnityProjectDir "C:\Users\Student\Downloads\New Unity Project 9".
Copying unprocessed assemblies...
Running AssemblyConverter...
AssemblyConverter done.
New Unity Project 9 -> C:\Users\Student\Desktop\w10\New Unity Project 9\bin\x86\Master\New Unity Project 9.exe
Package.appxmanifest(20,27): error APPX0703: Manifest references file 'Assets\SplashScreen.png' which is not part of the payload. [C:\Users\Student\Desktop\w10\New Unity Project 9\New Unity Project 9.csproj]