1 files changed, 17 insertions, 0 deletions
diff --git a/src/ProtoGen/DependencyResolutionException.cs b/src/ProtoGen/DependencyResolutionException.cs
new file mode 100644
index 00000000..4e483fc1
--- /dev/null
+++ b/src/ProtoGen/DependencyResolutionException.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Google.ProtocolBuffers.ProtoGen {
+  /// <summary>
+  /// Exception thrown when dependencies within a descriptor set can't be resolved.
+  /// </summary>
+  public sealed class DependencyResolutionException : Exception {
+    public DependencyResolutionException(string message) : base(message) {
+    }
+
+    public DependencyResolutionException(string format, params object[] args) 
+        : base(string.Format(format, args)) {
+    }
+  }
+}