Been working on a level with the editor but every time I try to run a test, it says the game crashed. Here is my error.txt
--- UNHANDLED EXCEPTION - 9/28/2013 3:34:01 PM - HMW 1.1 DEBUG ---
System.NullReferenceException: Object reference not set to an instance of an object.
at ARPGGame.LevelList.GetLevelFile(String level) in c:\Arbete\Programmering\C#\ARPGProj\trunk\ARPG\ARPGGame\LevelList.cs:line 161
at ARPGGame.LevelList.LoadLevel(WorldNode world, WorldDrawer worldDrawer, String level, SObject save) in c:\Arbete\Programmering\C#\ARPGProj\trunk\ARPG\ARPGGame\LevelList.cs:line 173
at ARPGGame.GameBase.ClearLevel() in c:\Arbete\Programmering\C#\ARPGProj\trunk\ARPG\ARPGGame\GameBase.cs:line 505
at ARPGGame.GameBase.Update(Int32 ms) in c:\Arbete\Programmering\C#\ARPGProj\trunk\ARPG\ARPGGame\GameBase.cs:line 865
at ARPGGame.ARPGGame.OnUpdateFrame(FrameEventArgs e) in c:\Arbete\Programmering\C#\ARPGProj\trunk\ARPG\ARPGGame\Program.cs:line 689
at OpenTK.GameWindow.RaiseUpdateFrame(Stopwatch update_watch, Double& next_update, FrameEventArgs update_args)
at OpenTK.GameWindow.Run(Double updates_per_second, Double frames_per_second)
at ARPGGame.Program.Main(String[] args) in c:\Arbete\Programmering\C#\ARPGProj\trunk\ARPG\ARPGGame\Program.cs:line 206
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