Index: sources/canbus/caninterface.cpp
===================================================================
diff -u -r9a3ee027dbc33f39ee7df2a9dc5a7897c6b1854d -rf623529d6ec25b555f3ac2248d71fc2b5e7063d6
--- sources/canbus/caninterface.cpp	(.../caninterface.cpp)	(revision 9a3ee027dbc33f39ee7df2a9dc5a7897c6b1854d)
+++ sources/canbus/caninterface.cpp	(.../caninterface.cpp)	(revision f623529d6ec25b555f3ac2248d71fc2b5e7063d6)
@@ -62,11 +62,12 @@
 void CanInterface::connection()
 {
 
-    connect(_canDevice, SIGNAL(framesReceived()),
-            this      , SLOT  (   onRead()));
-    connect(_canDevice, SIGNAL(errorOccurred(QCanBusDevice::CanBusError)),
-            this      , SLOT  ( onError(QCanBusDevice::CanBusError)));
-
+    if (_canDevice) {
+        connect(_canDevice, SIGNAL(framesReceived()),
+                this      , SLOT  (   onRead()));
+        connect(_canDevice, SIGNAL(errorOccurred(QCanBusDevice::CanBusError)),
+                this      , SLOT  ( onError(QCanBusDevice::CanBusError)));
+    }
     connect(_MessageHandler, SIGNAL(didActionPerform(QCanBusFrame)),
             this           ,   SLOT( onActionPerform(QCanBusFrame)));
     connect(_MessageHandler, SIGNAL(didActionRequest(QCanBusFrame)),
@@ -75,13 +76,20 @@
 
 void CanInterface::status(const QString &vDescription, QString vError)
 {
+    QString mError="";
+    if (_canDevice) {
+        mError = _canDevice->errorString() + vError;
+    }
+    else {
+        mError = vError;
+    }
     _canStatus = tr("%1 '%2[%3]', %4")
             .arg(vDescription)
             .arg(_canType)
             .arg(_canInterface)
-            .arg(_canDevice->errorString() + vError)
+            .arg(mError)
             ;
-    qDebug() << _canStatus;
+    // qDebug() << _canStatus;
 }
 
 void CanInterface::send(const QCanBusFrame &vFrame)
@@ -155,9 +163,9 @@
 
         const QString flags = frameFlags(frame);
 
-        qDebug() << time + flags + view;
+        // qDebug() << time + flags + view;
         // TODO : Needs to be investigated on how the messages on canBus will be received.
-        // my require to be moved at the end of the function.
+        // may require to be moved at the end of the function, to not to be called for each message.
         emit didRead(frame);
     }
 }