--- libgig/trunk/src/gig.cpp	2017/05/03 14:41:58	3138
+++ libgig/trunk/src/gig.cpp	2017/05/21 12:46:05	3198
@@ -24,6 +24,7 @@
 #include "gig.h"
 
 #include "helper.h"
+#include "Serialization.h"
 
 #include <algorithm>
 #include <math.h>
@@ -1816,6 +1817,11 @@
     }
 
     void DimensionRegion::serialize(Serialization::Archive* archive) {
+        // in case this class will become backward incompatible one day,
+        // then set a version and minimum version for this class like:
+        //archive->setVersion(*this, 2);
+        //archive->setMinVersion(*this, 1);
+
         SRLZ(VelocityUpperLimit);
         SRLZ(EG1PreAttack);
         SRLZ(EG1Attack);
@@ -2613,7 +2619,7 @@
 
             // unknown controller type
             default:
-                throw gig::Exception("Unknown leverage controller type.");
+                throw gig::Exception("Unknown leverage controller type (0x%x).", EncodedController);
         }
         return decodedcontroller;
     }
@@ -6467,7 +6473,18 @@
 // *************** Exception ***************
 // *
 
-    Exception::Exception(String Message) : DLS::Exception(Message) {
+    Exception::Exception() : DLS::Exception() {
+    }
+
+    Exception::Exception(String format, ...) : DLS::Exception() {
+        va_list arg;
+        va_start(arg, format);
+        Message = assemble(format, arg);
+        va_end(arg);
+    }
+
+    Exception::Exception(String format, va_list arg) : DLS::Exception() {
+        Message = assemble(format, arg);
     }
 
     void Exception::PrintMessage() {