Monogame模板在使用System.TypeInitializationException启动时崩溃

Question

Attempting to run this program on Windows

#region Using Statements
using System;

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Storage;
using Microsoft.Xna.Framework.Input;

#endregion

namespace asdf
{
public class Game1 : Game
{
    GraphicsDeviceManager graphics;
    SpriteBatch spriteBatch;        

    public Game1() //Exception raised points to here
    {
        graphics = new GraphicsDeviceManager(this);
        Content.RootDirectory = "Content";              
        graphics.IsFullScreen = true;       
    }
    protected override void Initialize()
    {
        base.Initialize();
    }
    protected override void LoadContent()
    {
        spriteBatch = new SpriteBatch(GraphicsDevice);
    }
    protected override void Update(GameTime gameTime)
    {
        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
        {
            Exit();
        }       
        base.Update(gameTime);
    }
    protected override void Draw(GameTime gameTime)
    {
        graphics.GraphicsDevice.Clear(Color.CornflowerBlue);
        base.Draw(gameTime);
    }
}
}

Raises the following exception

Unhandled Exception:
System.TypeInitializationException: An exception was thrown by the type initializer for System.Drawing.GDIPlus ---> System.DllNotFoundException: /tmp/install/lib/libgdiplus.so
  at (wrapper managed-to-native) System.Drawing.GDIPlus:GdiplusStartup (ulong&,System.Drawing.GdiplusStartupInput&,System.Drawing.GdiplusStartupOutput&)
  at System.Drawing.GDIPlus..cctor () [0x000cc] in C:\cygwin\sources\mono\mcs\class\System.Drawing\System.Drawing\gdipFunctions.cs:127
  --- End of inner exception stack trace ---
  at System.Drawing.Icon.get_Handle () [0x00020] in C:\cygwin\sources\mono\mcs\class\System.Drawing\System.Drawing\Icon.cs:646
  at (wrapper remoting-invoke-with-check) System.Drawing.Icon:get_Handle ()
  at OpenTK.Platform.Windows.WinGLNative.set_Icon (System.Drawing.Icon value) [0x00000] in <filename unknown>:0
  at OpenTK.NativeWindow.set_Icon (System.Drawing.Icon value) [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.OpenTKGameWindow.Initialize () [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.OpenTKGameWindow..ctor () [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.OpenTKGamePlatform..ctor (Microsoft.Xna.Framework.Game game) [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.GamePlatform.Create (Microsoft.Xna.Framework.Game game) [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.Game..ctor () [0x00000] in <filename unknown>:0
  at asdf.Program.Main (System.String[] arrayargs) [0x00000] in <
filename unknown>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: An exception was thrown by the type initializer for System.Drawing.GDIPlus ---> System.DllNotFoundException: /tmp/install/lib/libgdiplus.so
  at (wrapper managed-to-native) System.Drawing.GDIPlus:GdiplusStartup (ulong&,System.Drawing.GdiplusStartupInput&,System.Drawing.GdiplusStartupOutput&)
  at System.Drawing.GDIPlus..cctor () [0x000cc] in C:\cygwin\sources\mono\mcs\class\System.Drawing\System.Drawing\gdipFunctions.cs:127
  --- End of inner exception stack trace ---
  at System.Drawing.Icon.get_Handle () [0x00020] in C:\cygwin\sources\mono\mcs\class\System.Drawing\System.Drawing\Icon.cs:646
  at (wrapper remoting-invoke-with-check) System.Drawing.Icon:get_Handle ()
  at OpenTK.Platform.Windows.WinGLNative.set_Icon (System.Drawing.Icon value) [0x00000]in <filename unknown>:0
  at OpenTK.NativeWindow.set_Icon (System.Drawing.Icon value) [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.OpenTKGameWindow.Initialize () [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.OpenTKGameWindow..ctor () [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.OpenTKGamePlatform..ctor (Microsoft.Xna.Framework.Game game) [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.GamePlatform.Create (Microsoft.Xna.Framework.Game game) [0x00000] in <filename unknown>:0
  at Microsoft.Xna.Framework.Game..ctor () [0x00000] in <filename unknown>:0
  at asdf.Program.Main (System.String[] arrayargs) [0x00000] in <filename unknown>:0

When run in Mono.

I have tried:

• Reinstalling Mono

• Reinstalling Monogame

• Reinstalling Xamarin Studio

• Updating windows

and the error has remained unchanged.

This error does not occur when using SFML.Net in place of monogame

The whole solution can be found here

Answer 1

Fix:

Make sure there aren't any incorrect mappings in the mono config file, ie remove any lines that look like this:

<dllmap dll="gdiplus" target="whatever" />
<dllmap dll="gdiplus.dll" target="whatever" />

Explanation:

If you look at the exception detail you'll most likely find an underlying System.DllNotFoundException being thrown because the parent Game class contains references to System.Drawing.GDIPlus which is exposed through gdiplus.dll . gdiplus.dll is a core .NET Framework library so it should already be in your GAC. The most common reason for being unable to load this with cross-platform frameworks like Mono is an invalid DLL mapping.

Answer 2

This is a Mono bug: https://bugzilla.xamarin.com/show_bug.cgi?id=8309

Solution: in "C:\\Program Files (x86)\\Mono-3.2.3\\etc\\mono\\config", locate and delete the following lines:

<dllmap dll="gdiplus" target="/tmp/install/lib/libgdiplus.so" />
<dllmap dll="gdiplus.dll" target="/tmp/install/lib/libgdiplus.so" />

I can verify that this fixes the issue.

I would also suggest pinging on the bug report linked above to increase the chances of getting a fix in the near future.