Refs #11691 Hedge for event data without monitors

mantidproject · May 6, 2015 · 2064893 · 2064893
1 parent 15daa0e
commit 2064893
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/Code/Mantid/scripts/SANS/isis_reduction_steps.py b/Code/Mantid/scripts/SANS/isis_reduction_steps.py
@@ -165,7 +165,12 @@ def _load(self, inst = None, is_can=False, extra_options=dict()):
 
         if not added_event_data_flag:
             if isinstance(outWs, IEventWorkspace):
-                LoadNexusMonitors(self._data_file, OutputWorkspace=monitor_ws_name)
+                try:
+                    LoadNexusMonitors(self._data_file, OutputWorkspace=monitor_ws_name)
+                except ValueError, details:
+                    sanslog.warning('The file does not contain monitors. \n' +
+                                    'The normalization might behave differently than you expect.\n'
+                                   ' Further details: ' + details + '\n')
             else:
                 if monitor_ws_name in mtd:
                     DeleteWorkspace(monitor_ws_name)