diff --git a/rtdata/languages/Francais b/rtdata/languages/Francais
index a0447f92f..72495ea7e 100644
--- a/rtdata/languages/Francais
+++ b/rtdata/languages/Francais
@@ -109,7 +109,7 @@ FILEBROWSER_EXIFFILTERSETTINGS;Réglages
 FILEBROWSER_EXTPROGMENU;Ouvrir avec
 FILEBROWSER_FLATFIELD;Champ Uniforme
 FILEBROWSER_MOVETODARKFDIR;Déplacer dans le dossier d'images de Trame Noire
-FILEBROWSER_MOVETOFLATFIELDDIR;Déplacer vers le dossier de Trame Noire
+FILEBROWSER_MOVETOFLATFIELDDIR;Déplacer vers le dossier de Champ Uniforme
 FILEBROWSER_NEW_NAME;Nouveau nom:
 FILEBROWSER_OPENDEFAULTVIEWER;Visualiseur par défaut de Windows (image déjà traitée) 
 FILEBROWSER_PARTIALPASTEPROFILE;Coller partiellement
@@ -524,8 +524,11 @@ MAIN_MSG_EXITJOBSINQUEUEQUEST;Êtes-vous sûr de vouloir quitter? Il reste dans
 MAIN_MSG_IMAGEUNPROCESSED;Cette commande nécessite que toutes les images sélectionnées aient été préalablement traité.
 MAIN_MSG_JOBSINQUEUE;travail(aux) en file d'attente
 MAIN_MSG_NAVIGATOR;Navigateur
+MAIN_MSG_OPERATIONCANCELLED;Opération annulée
 MAIN_MSG_PLACES;Emplacement
+MAIN_MSG_PATHDOESNTEXIST;Le chemin \n\n<b>%1</b>\n\nn'existe pas. S.V.P indiquez un chemin correct dans la fenêtre Préférences.
 MAIN_MSG_QOVERWRITE;Voulez-vous l'écraser?
+MAIN_MSG_SETPATHFIRST;Vous devez d'abord choisir un dossier cible dans Préférences\npour pouvoir utiliser cette fonction!
 MAIN_MSG_WRITEFAILED;Échec de l'enregistrement du fichier\n\n<b>"%1"</b>\n\nAssurez-vous que le dossier existe et qu'il est permis d'y écrire.
 MAIN_TAB_BASIC;Basique
 MAIN_TAB_COLOR;Couleur
diff --git a/rtdata/languages/default b/rtdata/languages/default
index b80fdea18..47cbfd49a 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -524,8 +524,11 @@ MAIN_MSG_EXITJOBSINQUEUEQUEST;Are you sure you want to exit? There are unprocess
 MAIN_MSG_IMAGEUNPROCESSED;This command requires all selected images to be queue processed first.
 MAIN_MSG_JOBSINQUEUE;job(s) in the queue
 MAIN_MSG_NAVIGATOR;Navigator
+MAIN_MSG_OPERATIONCANCELLED;Operation cancelled
 MAIN_MSG_PLACES;Places
+MAIN_MSG_PATHDOESNTEXIST;The path\n\n<b>%1</b>\n\ndoesn't exist. Please set a correct path in the Preference window.
 MAIN_MSG_QOVERWRITE;Do you want to overwrite it?
+MAIN_MSG_SETPATHFIRST;You have to set a target path first in Preferences\nin order to use this function!
 MAIN_MSG_WRITEFAILED;Failed to write\n\n<b>"%1"</b>\n\nMake sure that the folder exists and that you have write permission to it.
 MAIN_TAB_BASIC;Basic
 MAIN_TAB_COLOR;Color
diff --git a/rtgui/filebrowser.cc b/rtgui/filebrowser.cc
index 733a0c88e..f975c74bd 100644
--- a/rtgui/filebrowser.cc
+++ b/rtgui/filebrowser.cc
@@ -613,16 +613,33 @@ void FileBrowser::menuItemActivated (Gtk::MenuItem* m) {
 			}
     	}
     }else if( m==thisIsDF){
-    	if( !options.rtSettings.darkFramesPath.empty() && Gio::File::create_for_path(options.rtSettings.darkFramesPath)->query_exists() ){
-		for (size_t i=0; i<mselected.size(); i++){
-				Glib::RefPtr<Gio::File> file = Gio::File::create_for_path ( mselected[i]->filename );
-				if( !file )continue;
-				Glib::ustring destName = options.rtSettings.darkFramesPath+ "/" + file->get_basename();
-				Glib::RefPtr<Gio::File> dest = Gio::File::create_for_path ( destName );
-				file->move(  dest );
+    	if( !options.rtSettings.darkFramesPath.empty()) {
+    		if (Gio::File::create_for_path(options.rtSettings.darkFramesPath)->query_exists() ){
+    			for (size_t i=0; i<mselected.size(); i++){
+					Glib::RefPtr<Gio::File> file = Gio::File::create_for_path ( mselected[i]->filename );
+					if( !file )continue;
+					Glib::ustring destName = options.rtSettings.darkFramesPath+ "/" + file->get_basename();
+					Glib::RefPtr<Gio::File> dest = Gio::File::create_for_path ( destName );
+					file->move(  dest );
+				}
+				// Reinit cache
+				rtengine::dfm.init( options.rtSettings.darkFramesPath );
 			}
-			// Reinit cache
-			rtengine::dfm.init( options.rtSettings.darkFramesPath );
+			else {
+				// Target directory creation failed, we clear the darkFramesPath setting
+				options.rtSettings.darkFramesPath.clear();
+				Glib::ustring msg_ = Glib::ustring::compose (M("MAIN_MSG_PATHDOESNTEXIST"), options.rtSettings.darkFramesPath)
+				                     +"\n\n"+M("MAIN_MSG_OPERATIONCANCELLED");
+				Gtk::MessageDialog msgd (msg_, true, Gtk::MESSAGE_ERROR, Gtk::BUTTONS_OK, true);
+				msgd.set_title(M("TP_DARKFRAME_LABEL"));
+				msgd.run ();
+    		}
+    	}
+    	else {
+			Glib::ustring msg_ = M("MAIN_MSG_SETPATHFIRST")+"\n\n"+M("MAIN_MSG_OPERATIONCANCELLED");
+			Gtk::MessageDialog msgd (msg_, true, Gtk::MESSAGE_ERROR, Gtk::BUTTONS_OK, true);
+			msgd.set_title(M("TP_DARKFRAME_LABEL"));
+			msgd.run ();
     	}
     }
     else if (m==autoFF){
@@ -653,16 +670,33 @@ void FileBrowser::menuItemActivated (Gtk::MenuItem* m) {
     	}
     }
     else if( m==thisIsFF){
-    	if( !options.rtSettings.flatFieldsPath.empty() && Gio::File::create_for_path(options.rtSettings.flatFieldsPath)->query_exists() ){
-		for (size_t i=0; i<mselected.size(); i++){
-				Glib::RefPtr<Gio::File> file = Gio::File::create_for_path ( mselected[i]->filename );
-				if( !file )continue;
-				Glib::ustring destName = options.rtSettings.flatFieldsPath+ "/" + file->get_basename();
-				Glib::RefPtr<Gio::File> dest = Gio::File::create_for_path ( destName );
-				file->move(  dest );
+    	if( !options.rtSettings.flatFieldsPath.empty()) {
+    		if (Gio::File::create_for_path(options.rtSettings.flatFieldsPath)->query_exists() ){
+    			for (size_t i=0; i<mselected.size(); i++){
+					Glib::RefPtr<Gio::File> file = Gio::File::create_for_path ( mselected[i]->filename );
+					if( !file )continue;
+					Glib::ustring destName = options.rtSettings.flatFieldsPath+ "/" + file->get_basename();
+					Glib::RefPtr<Gio::File> dest = Gio::File::create_for_path ( destName );
+					file->move(  dest );
+				}
+				// Reinit cache
+				rtengine::ffm.init( options.rtSettings.flatFieldsPath );
 			}
-			// Reinit cache
-			rtengine::ffm.init( options.rtSettings.flatFieldsPath );
+    		else {
+				// Target directory creation failed, we clear the flatFieldsPath setting
+				options.rtSettings.flatFieldsPath.clear();
+				Glib::ustring msg_ = Glib::ustring::compose (M("MAIN_MSG_PATHDOESNTEXIST"), options.rtSettings.flatFieldsPath)
+				                     +"\n\n"+M("MAIN_MSG_OPERATIONCANCELLED");
+				Gtk::MessageDialog msgd (msg_, true, Gtk::MESSAGE_ERROR, Gtk::BUTTONS_OK, true);
+				msgd.set_title(M("TP_FLATFIELD_LABEL"));
+				msgd.run ();
+			}
+		}
+		else {
+			Glib::ustring msg_ = M("MAIN_MSG_SETPATHFIRST")+"\n\n"+M("MAIN_MSG_OPERATIONCANCELLED");
+			Gtk::MessageDialog msgd (msg_, true, Gtk::MESSAGE_ERROR, Gtk::BUTTONS_OK, true);
+			msgd.set_title(M("TP_FLATFIELD_LABEL"));
+			msgd.run ();
     	}
     }
     else if (m==copyprof)