Traceback (most recent call last):


 "c:\programdata\anaconda3\lib\site-packages\pip-10.0.1-py3.6.egg\pip\_internal\basecommand.py", line 228, in main

status = self.run(options, args)


 "c:\programdata\anaconda3\lib\site-packages\pip-10.0.1-py3.6.egg\pip\_internal\commands\install.py", line 318, in run

self._warn_about_conflicts(to_install)


 "c:\programdata\anaconda3\lib\site-packages\pip-10.0.1-py3.6.egg\pip\_internal\commands\install.py", line 442, in _warn_about_conflicts

package_set, _dep_info = check_install_conflicts(to_install)


 "c:\programdata\anaconda3\lib\site-packages\pip-10.0.1-py3.6.egg\pip\_internal\operations\check.py", line 89, in check_install_conflicts

state = create_package_set_from_installed()


 "c:\programdata\anaconda3\lib\site-packages\pip-10.0.1-py3.6.egg\pip\_internal\operations\check.py", line 39, in create_package_set_from_installed

retval[name] = PackageDetails(dist.version, dist.requires())


 "c:\programdata\anaconda3\lib\site-packages\pip-10.0.1-py3.6.egg\pip\_vendor\pkg_resources\__init__.py", line 2567, in version

raise ValueError(tmpl % self.PKG_INFO, self)
ValueError: ("Missing 'Version:' header and/or METADATA file", Unknown [unknown version] (c:\programdata\anaconda3\lib\site-packages))

Traceback (most recent call last):


 "hummingbot\core\clock.pyx", line 119, in hummingbot.core.clock.Clock.run_til


 "hummingbot\strategy\arbitrage\arbitrage.pyx", line 192, in hummingbot.strategy.arbitrage.arbitrage.ArbitrageStrategy.c_tick


 "hummingbot\strategy\arbitrage\arbitrage.pyx", line 317, in hummingbot.strategy.arbitrage.arbitrage.ArbitrageStrategy.c_process_market_pair


 "hummingbot\strategy\arbitrage\arbitrage.pyx", line 254, in hummingbot.strategy.arbitrage.arbitrage.ArbitrageStrategy.c_calculate_arbitrage_top_order_profitability


 "hummingbot\strategy\market_trading_pair_tuple.py", line 37, in get_price


 "hummingbot\connector\exchange_base.pyx", line 203, in hummingbot.connector.exchange_base.ExchangeBase.get_price


 "hummingbot\connector\exchange_base.pyx", line 100, in hummingbot.connector.exchange_base.ExchangeBase.c_get_price


 "hummingbot\connector\exchange\paper_trade\paper_trade_market.pyx", line 899, in hummingbot.connector.exchange.paper_trade.paper_trade_market.PaperTradeMarket.c_get_order_book
ValueError: No order book exists for 'YFII-USDT'.
