A* on WP8 and W8

Hi aron,
I’ve tried the new package, it was again giving compiler errors

Error building Player: Exception: Error: method System.Int32 System.Math::DivRem(System.Int32,System.Int32,System.Int32&) doesn’t exist in target framework. It is referenced from Assembly-CSharp.dll at System.Void Pathfinding.RecastGraph::GetTileCoordinates(System.Int32,System.Int32&,System.Int32&).