Trading Crypto Coins without fiat

How would I go about setting up a test that would trade LTC for BTC and BTC for LTC? 
My attempts thus far have failed. 

Here's my last code snippet:

public override void Initialize()
SetStartDate(2017, 1, 1); //Set Start Date
SetEndDate(2018, 3, 1); //Set End Date
//SetCash(3100); //Set Strategy Cash
//SetBrokerageModel(BrokerageName.GDAX, AccountType.Cash);
AddSecurity(SecurityType.Crypto, symbol, TimePeriod);
security = Securities[symbol];

foreach (Security s in Securities.Values)
s.FeeModel = new CustomFeeModel();
Update Backtest

Getting this error 
Backtest Handled Error: ETHBTC: requires BTC to have a non-zero conversion rate. This can be caused by lack of data.


Update Backtest


The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.


This discussion is closed