Index: trunk/webapps/unifiedlogger/cad_watcher.py
===================================================================
--- trunk/webapps/unifiedlogger/cad_watcher.py	(revision 433)
+++ trunk/webapps/unifiedlogger/cad_watcher.py	(revision 436)
@@ -15,7 +15,13 @@
 
 # Read the cms message file
-def readFile():     
-    text_file = open("../../CADcomments.log", "r")
-    lines = text_file.read().split('\n')
+def readFile():
+    lines = []
+    try:
+        text_file = open("../../CADcomments.log", "r")
+    except IOError:
+        print "Error: missing CADcomments.log file."
+    else:
+        lines = text_file.read().split('\n')
+        text_file.close()    
     return lines