Index: src/Common/SharpMap/Layers/Layer.cs
===================================================================
diff -u -r5fc71a385897af92ccb092f2f969b5709afab85a -r046989902e6c0c0f6f8cc821aaf097c377d7dccb
--- src/Common/SharpMap/Layers/Layer.cs	(.../Layer.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
+++ src/Common/SharpMap/Layers/Layer.cs	(.../Layer.cs)	(revision 046989902e6c0c0f6f8cc821aaf097c377d7dccb)
@@ -23,6 +23,7 @@
 using System.Drawing.Imaging;
 using System.Linq;
 using DelftTools.Utils.Aop;
+using DelftTools.Utils.Aop.Markers;
 using DelftTools.Utils.Diagnostics;
 using GeoAPI.CoordinateSystems;
 using GeoAPI.CoordinateSystems.Transformations;