Diff

Index: trac/Timeline.py===================================================================--- trac/Timeline.py	(revision 4204)+++ trac/Timeline.py	(working copy)@@ -138,6 +138,13 @@         stop = fromdate         start = stop - (daysback + 1) * 86400 +        try:+            repos = self.env.get_repository()+        except TracError:+            pass # Unsupported version control+        else:+            repos.sync()+         events = []         for event_provider in self.event_providers:             try: