Traceback (most recent call last):


 "hummingbot/core/pubsub.pyx", line 165, in hummingbot.core.pubsub.PubSub.c_trigger_event

typed_listener.c_call(arg)


 "hummingbot/strategy/strategy_base.pyx", line 45, in hummingbot.strategy.strategy_base.SellOrderCompletedListener.c_call

self._owner.c_did_complete_sell_order(arg)


 "hummingbot/strategy/pure_market_making/pure_market_making_v2.pyx", line 824, in hummingbot.strategy.pure_market_making.pure_market_making_v2.PureMarketMakingStrategyV2.c_did_complete_sell_order

MarketBase maker_market = market_info.market
AttributeError: 'NoneType' object has no attribute 'market'

Traceback (most recent call last):


 "/Users/ultimaker/build/2.7/build/inst/lib/python3.5/site-packages/cura/CuraApplication.py", line 707, in event


 "/Users/ultimaker/build/2.7/build/inst/lib/python3.5/site-packages/UM/Qt/QtApplication.py", line 261, in event


 "/Users/ultimaker/build/2.7/build/inst/lib/python3.5/site-packages/UM/Event.py", line 189, in call


 "/Users/ultimaker/build/2.7/build/inst/lib/python3.5/site-packages/UM/Signal.py", line 315, in __performEmit


 "/Users/ultimaker/build/2.7/build/inst/lib/python3.5/site-packages/cura/Settings/ExtruderStack.py", line 94, in _onPropertiesChanged
AttributeError: 'NoneType' object has no attribute 'definition'
