[minor] try block in serial no status patch
diff --git a/patches/october_2013/p01_fix_serial_no_status.py b/patches/october_2013/p01_fix_serial_no_status.py
index 0bfc400..4d0dc4b 100644
--- a/patches/october_2013/p01_fix_serial_no_status.py
+++ b/patches/october_2013/p01_fix_serial_no_status.py
@@ -9,10 +9,13 @@
 	serial_nos = webnotes.conn.sql("""select name from `tabSerial No` where status!='Not in Use' 
 		and docstatus=0""")
 	for sr in serial_nos:
-		sr_bean = webnotes.bean("Serial No", sr[0])
-		sr_bean.make_controller().via_stock_ledger = True
-		sr_bean.run_method("validate")
-		sr_bean.save()
+		try:
+			sr_bean = webnotes.bean("Serial No", sr[0])
+			sr_bean.make_controller().via_stock_ledger = True
+			sr_bean.run_method("validate")
+			sr_bean.save()
+		except:
+			pass
 			
 	webnotes.conn.sql("""update `tabSerial No` set warehouse='' where status in 
 		('Delivered', 'Purchase Returned')""")
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