diff --git a/Source/OpenTK/GLContext.cs b/Source/OpenTK/GLContext.cs
index 37e0ae47..9f4960f4 100644
--- a/Source/OpenTK/GLContext.cs
+++ b/Source/OpenTK/GLContext.cs
@@ -353,4 +353,11 @@ namespace OpenTK
 
         #endregion
     }
+
+    /// <summary>Represents errors related to Graphics operations.</summary>
+    public class GraphicsException : Exception
+    {
+        public GraphicsException() : base() { }
+        public GraphicsException(string message) : base(message) { }
+    }
 }
\ No newline at end of file
diff --git a/Source/OpenTK/OpenGL/GLHelper.cs b/Source/OpenTK/OpenGL/GLHelper.cs
index c3972895..e676f47c 100644
--- a/Source/OpenTK/OpenGL/GLHelper.cs
+++ b/Source/OpenTK/OpenGL/GLHelper.cs
@@ -72,7 +72,6 @@ namespace OpenTK.OpenGL
         private static Type glClass;
         private static Type delegatesClass;
         private static Type importsClass;
-        private static FieldInfo[] delegates;
 
         #endregion