Metadata file Assembly-CSharp-firstpass.dll not found

[einstyle]

In visual studio, when I lanch the app in Release mode, x86, Device:

• Metadata file Assembly-CSharp-firstpass.dll not found
• Could not write lines to "obj\x86\Release\Release\Assembly-CSharp-firstpass.csprojResolveAssemblzReference.cache". the specified path, filename or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters.

[neon-ninja]

When building from Unity, ensure you that select Windows Store - Hololens - D3D as your target platform. You may need to perform a clean build