From 09d01a1d375b22d5ecd7a20ce04c1ce5ec030a14 Mon Sep 17 00:00:00 2001
From: James Jackson-South <james_south@hotmail.com>
Date: Sun, 1 Jan 2017 13:13:38 +1100
Subject: [PATCH] Throw useful error

---
 src/ImageSharp/Image/Image{TColor}.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/ImageSharp/Image/Image{TColor}.cs b/src/ImageSharp/Image/Image{TColor}.cs
index 4d9511835..ed556f2f3 100644
--- a/src/ImageSharp/Image/Image{TColor}.cs
+++ b/src/ImageSharp/Image/Image{TColor}.cs
@@ -49,6 +49,11 @@ namespace ImageSharp
         public Image(int width, int height, Configuration configuration = null)
             : base(width, height, configuration)
         {
+            if (!this.Configuration.ImageFormats.Any())
+            {
+                throw new NotSupportedException("No image formats have been configured.");
+            }
+
             this.CurrentImageFormat = this.Configuration.ImageFormats.First();
         }