In the 'Identifying a Stop Loss Hit' Boot Camp lesson, the code snippet for Order Ticket tracking is:

# Place our order and return an order ticket
self.stopMarketTicket = self.StopMarketOrder("IBM", -300, ibmStockPrice * 0.9)
#  Log its OrderId
self.Debug(stopMarketTicket.OrderId) 


but 


self.Debug(stopMarketTicket.OrderId) should be 

self.Debug(self.stopMarketTicket.OrderId)