Index: sources/canbus/messageinterpreter.cpp
===================================================================
diff -u -r37f55056a2748c49f226d686aeb0624349357802 -r6c59703781373f33cfec27eacf1f7e4ba1374626
--- sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision 37f55056a2748c49f226d686aeb0624349357802)
+++ sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision 6c59703781373f33cfec27eacf1f7e4ba1374626)
@@ -68,7 +68,9 @@
         // Mentioned in the switch/case to be registered as a valid message.
         //
         // Note : added this line to be able to do the Fake Test
-        vPayload = Format::fromVariant(vData[0]);
+        if (vData.count()) {
+            vPayload = Format::fromVariant(vData[0]);
+        }
         break;
 
     case Gui::GuiActionType::Acknow:
@@ -78,7 +80,9 @@
         break;
 
     case Gui::GuiActionType::String:
-        vPayload = Format::fromVariant(vData[0]);
+        if (vData.count()) {
+            vPayload = Format::fromVariant(vData[0]);
+        }
         break;
 
     default: