Traceback (most recent call last):
  File "electrum\gui\qt\history_list.py", line 789, in <lambda>
  File "electrum\gui\qt\main_window.py", line 2744, in dscancel_dialog
  File "electrum\transaction.py", line 1051, in add_info_from_wallet_and_network
NameError: name 'Network' is not defined