Index: tools/make-network-graph.py
===================================================================
--- tools/make-network-graph.py	(revision 10037)
+++ tools/make-network-graph.py	(revision 10038)
@@ -15,5 +15,9 @@
 OUTFILE = os.path.join(os.getcwd(),'network.png')
 
-store = yaml.load(open('store.yaml','r'))
+try:
+  store = yaml.load(open('store.yaml','r'))
+except IOError:
+  store = {'uptime' : {}, 'snmp' : {}, 'traffic' : {}}
+  pass
 
 def make_graph():