System.TypeLoadException: Could not load type 'Microsoft.Xna.Framework.Graphics.SpriteFont' from assembly 'Microsoft.Xna.Framework, Version=1.0.0.0, Culture=neutral, PublicKeyToken=6d5c3888ef60e27d'.Haven't been able to start the program yet due to this problem. It's the first thing I see when I run osu!.exe. Let me know if I can provide any more information.
at osu.GameBase.Initialize()
at Microsoft.Xna.Framework.Game.Run()
at osu.Program.Main()