MainWindow: Add message box at results opening error.

src/View/MainWindow.py

@@ -1569,10 +1569,12 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
 
         # No results available
         if results is None:
+            self.msg_open_results_no_results()
             return
 
         # results does not have values, for example if geometry missmatch
         if not results.is_valid:
+            self.msg_open_results_invalid_results()
             return
 
         if results.get('study_revision') != self._study.status.version:
@@ -1598,6 +1600,20 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
         )
         res.show()
 
+    def msg_open_results_no_results(self):
+        self.message_box(
+            window_title=self._trad["Warning"],
+            text=self._trad["mb_open_results_title"],
+            informative_text=self._trad["mb_open_results_no_results_msg"]
+        )
+
+    def msg_open_results_invalid_results(self):
+        self.message_box(
+            window_title=self._trad["Error"],
+            text=self._trad["mb_open_results_title"],
+            informative_text=self._trad["mb_open_results_invalid_results_msg"]
+        )
+
     def open_solver_results_adists(self, solver, results=None):
         def reading_fn():
             self._tmp_results = results