Index: trunk/src/org/openstreetmap/josm/gui/layer/AutosaveTask.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/layer/AutosaveTask.java	(revision 18126)
+++ trunk/src/org/openstreetmap/josm/gui/layer/AutosaveTask.java	(revision 18127)
@@ -309,5 +309,5 @@
                 }
             } else {
-                Logging.error("Unsupported savable layer type: {0}", layer.getClass().getSimpleName());
+                Logging.debug("Unsupported savable layer type: {0}", layer.getClass().getSimpleName());
             }
         }