Trailing Stop Losses Not working

[Vampirebat]

I cant get the trailing stop loss to work in any order, either when i make the order or even to modify an order... some of the errors i get are.

raceback (most recent call last):
File "/home/vamp/opt/v20-python-samples/env/bin/v20-order-stop-loss", line 11, in
load_entry_point('v20-python-samples', 'console_scripts', 'v20-order-stop-loss')()
File "/home/vamp/opt/v20-python-samples/src/order/stop_loss.py", line 47, in main
orderArgs.parse_arguments(args)
File "/home/vamp/opt/v20-python-samples/src/order/args.py", line 54, in parse_arguments
parser(args)
File "/home/vamp/opt/v20-python-samples/src/order/args.py", line 67, in
lambda args: self.parse_trade_id(args)
File "/home/vamp/opt/v20-python-samples/src/order/args.py", line 75, in parse_trade_id
if args.trade.id[0] == '@':
AttributeError: 'Namespace' object has no attribute 'trade'

everything has been working fine, just not trailing stop losses, any help would be much appreciated.