Hi QC community,

I'm trying to backtest a long short strategy on Binance crypto data. I tried two brokerages but nothing worked:


self.SetBrokerageModel(BrokerageName.QuantConnectBrokerage, AccountType.Margin)

The error I got was

Backtest Handled Error: Unable to compute order quantity of BTCUSDT. Reason: The cash model does not allow shorting. Returning null.


Another thing I tried was using 

self.SetBrokerageModel(BrokerageName.Bitfinex, AccountType.Margin)

The data I use must be from Market.Binance because it has higher data quality. When I use these two at the same time, I got a strange error

Backtest Handled Error: OrderID: 1 Warning - Code: NotSupported - The minimum order quantity for BTCUSDT is 10. Order quantity was -0.03449

It is ridiculous to ask for the order to be at least 10 BTC so I'd assume something is wrong.