MonoGame ArgumentNullException in Spritebatch.End()

Question

I switched my Project from XNA 4 to MonoGame 2.5.1. The port went somewhat unproblematic but I am stumpled across a problem i can't resolve. For your interest, the code worked on XNA:

When I am drawing a spritebatch with a basicEffect I get an ArgumentNullException on calling the End() method. This is the simplified draw call

// polyEffTest is defined somewhere else, not in the draw function
polyEffTest = new PolygonBasicEffect(gd);  

// the simplified draw call
sbTest.Begin(
  SpriteSortMode.BackToFront,
  BlendState.AlphaBlend,
  SamplerState.LinearClamp,
  DepthStencilState.Default,
  GraphicsDevice.RasterizerState,
  polyEffTest,
  Matrix.CreateTranslation(offX, offY, 0f)
);

// draw something [...]

sbTest.End() // <- End-call causes Exception

when I replace polyEffTest with NULL in sbTest.Begin I won't get the ArgumentNullException but nothing gets drawed either (obvious). So I guess it has to do something with the BasicEffect

Here is the stacktrace

>   at OpenTK.Graphics.ES11.GL.GetError () [0x00000] in <filename
> unknown>:0    at OpenTK.Graphics.ES11.ErrorHelper.ResetErrors ()
> [0x00000] in <filename unknown>:0    at
> OpenTK.Graphics.ES11.ErrorHelper..ctor (IGraphicsContext context)
> [0x00000] in <filename unknown>:0    at
> OpenTK.Graphics.ES11.GL.Viewport (Int32 x, Int32 y, Int32 width, Int32
> height) [0x00000] in <filename unknown>:0    at
> Microsoft.Xna.Framework.Graphics.GLStateManager.Viewport (Rectangle
> viewport) [0x00000] in <filename unknown>:0    at
> Microsoft.Xna.Framework.Graphics.BasicEffect.Apply () [0x00000] in
> <filename unknown>:0    at
> Microsoft.Xna.Framework.Graphics.SpriteBatch.End () [0x00000] in
> <filename unknown>:0    at RustyMoon.Game1.Draw
> (Microsoft.Xna.Framework.GameTime gameTime) [0x001b1] in
> /home/mereddyn/projects/c#/RMoonMono/RMoonMono/Game1.cs:306    at
> Microsoft.Xna.Framework.Game.DoDraw (Microsoft.Xna.Framework.GameTime
> gameTime) [0x00000] in <filename unknown>:0    at
> Microsoft.Xna.Framework.GameWindow.OnRenderFrame (System.Object
> sender, OpenTK.FrameEventArgs e) [0x00000] in <filename unknown>:0   
> at OpenTK.GameWindow.OnRenderFrame (OpenTK.FrameEventArgs e) [0x00000]
> in <filename unknown>:0    at OpenTK.GameWindow.OnRenderFrameInternal
> (OpenTK.FrameEventArgs e) [0x00000] in <filename unknown>:0    at
> OpenTK.GameWindow.RaiseRenderFrame (System.Diagnostics.Stopwatch
> render_watch, System.Double& next_render, OpenTK.FrameEventArgs
> render_args) [0x00000] in <filename unknown>:0    at
> OpenTK.GameWindow.DispatchUpdateAndRenderFrame (System.Object sender,
> System.EventArgs e) [0x00000] in <filename unknown>:0    at
> OpenTK.GameWindow.Run (Double updates_per_second, Double
> frames_per_second) [0x00000] in <filename unknown>:0    at
> OpenTK.GameWindow.Run (Double updateRate) [0x00000] in <filename
> unknown>:0    at Microsoft.Xna.Framework.GameWindow.Run (Double
> updateRate) [0x00000] in <filename unknown>:0    at
> Microsoft.Xna.Framework.LinuxGamePlatform.RunLoop () [0x00000] in
> <filename unknown>:0    at Microsoft.Xna.Framework.Game.Run
> (GameRunBehavior runBehavior) [0x00000] in <filename unknown>:0    at
> Microsoft.Xna.Framework.Game.Run () [0x00000] in <filename unknown>:0 
> at RustyMoon.Program.Main () [0x00010] in
> /home/mereddyn/projects/c#/RMoonMono/RMoonMono/Program.cs:20

I am using MonoGame 2.5.1 on Ubuntu 14.04 with MonoDevelop. The polyEffTest is defined like that:

public class PolygonBasicEffect : BasicEffect
{
    public PolygonBasicEffect(GraphicsDevice graphicsDevice)
        : base(graphicsDevice)
    {
        this.VertexColorEnabled = true;
        this.TextureEnabled = true;
        this.Projection = Matrix.CreateOrthographicOffCenter(
            0, graphicsDevice.Viewport.Width, graphicsDevice.Viewport.Height, 0, 0, 1
        );
    }

    public PolygonBasicEffect(BasicEffect effect)
        : base(effect)
    {
    }

    public BasicEffect Clone()
    {
        return new PolygonBasicEffect(this);
    }
}

Even if I am calling the End call imediatly after the Begin i get the Exception. I even get the exception if I am replacing polyEffTest with a new BasicEffect()

Update

I did some testing on a different machine. I downloaded the same Mono Version 2.5.1 and tried it on a Windows 7 System with Visual Studio. It works. I will try it with a different linux machine the end of the day. In addition, I stumpled across something. I guess there is an issue with unsafe code within MonoDevelop on my main system. But I can't tell you anything until tomorrow.

Answer 1

I got it to work. I updated all Versions and build the Assembly from Source and invoked the DLLs. Now it works as expected.