Crashing?

[dinoman9877]

Object reference not set to an instance of an object.

at SpeciesALRE.World.QuadTerrain..ctor(GraphicsDevice GraphicsDevice, Effect terrainShader, Effect biomeTextureEffect, Texture2D heightMap, Int32 squareSize, Int32 vertexBufferSize, Single scale, Single height, EnvironmentData eData, Texture2D FertilityTemperatureMap, Texture2D terrainDetailMap, Texture2D terrainDetailNormalMap, Texture2D cliffTexture, Vector3 sunlightVector, Vector3 sunlightColour) in C:\Users\Quasar\Documents\Qu's Projects\Species\Source\Species\World\QuadTerrain.cs:line 889
at SpeciesALRE.World.World.GenerateTerrain(GraphicsDevice GraphicsDevice, Texture2D heightMap, Texture2D[] terrainTextures, Texture2D cliffTexture) in C:\Users\Quasar\Documents\Qu's Projects\Species\Source\Species\World\World.cs:line 450
at SpeciesALRE.World.World.BuildWorld(GraphicsDevice GraphicsDevice, String& loadGameFilePath, Int32 seed) in C:\Users\Quasar\Documents\Qu's Projects\Species\Source\Species\World\World.cs:line 195
at SpeciesALRE.Game1.Update(GameTime gameTime) in C:\Users\Quasar\Documents\Qu's Projects\Species\Source\Species\Game1.cs:line 569
at Microsoft.Xna.Framework.Game.Tick()
at Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
at Microsoft.Xna.Framework.GameHost.OnIdle()
at Microsoft.Xna.Framework.WindowsGameHost.ApplicationIdle(Object sender, EventArgs e)
at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Microsoft.Xna.Framework.WindowsGameHost.Run()
at Microsoft.Xna.Framework.Game.Run()
at SpeciesALRE.Program.Main(String[] args) in C:\Users\Quasar\Documents\Qu's Projects\Species\Source\Species\Program.cs:line 24

Species, Version=0.9.0.415, Culture=neutral, PublicKeyToken=null

Installation Path: C:\Users\nah\Desktop\Species 0.9.0 Alpha
CultureInfo: English (United States) | Decimal Character: "."
UIView: None | SelectionMode: Creature

Help?

Yes, I have the version of Microsoft XNA from the download page. I dunno what happened.