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'.

Traceback (most recent call last):


 "examples/fastspeech2/train_fastspeech2.py", line 419, in <module>

main()


 "examples/fastspeech2/train_fastspeech2.py", line 371, in main

fastspeech.load_weights(args.pretrained, by_name=True, skip_mismatch=True)


 "/usr/local/lib/python3.6/dist-packages/tensorflow/python/keras/engine/training.py", line 2209, in load_weights

f, self.layers, skip_mismatch=skip_mismatch)


 "/usr/local/lib/python3.6/dist-packages/tensorflow/python/keras/saving/hdf5_format.py", line 759, in load_weights_from_hdf5_group_by_name

layer, weight_values, original_keras_version, original_backend)


 "/usr/local/lib/python3.6/dist-packages/tensorflow/python/keras/saving/hdf5_format.py", line 403, in preprocess_weights_for_loading

weights[0] = np.transpose(weights[0], (3, 2, 0, 1))


 "<__array_function__ internals>", line 6, in transpose


 "/usr/local/lib/python3.6/dist-packages/numpy/core/fromnumeric.py", line 651, in transpose

return _wrapfunc(a, 'transpose', axes)


 "/usr/local/lib/python3.6/dist-packages/numpy/core/fromnumeric.py", line 61, in _wrapfunc

return bound(*args, **kwds)
ValueError: axes don't match array
