I'm new to QuantConnect. I try to deploy an algorithm live with Oanda but get systematic the same error:

During the algorithm initialization, the following exception has occurred: System.Exception: No default market set for security type: Future
at QuantConnect.Algorithm.QCAlgorithm.AddFuture (System.String symbol, QuantConnect.Resolution resolution, System.String market, System.Boolean fillDataForward, System.Decimal leverage) [0x00039] in <948b718a188a4ba2994823a9f477c87e>:0
at QuantConnect.Algorithm.CSharp.FuturesMomentumAlgorithm.Initialize () [0x00085] in <37a8d66406484b15b9222918d3dbc502>:0
at QuantConnect.Lean.Engine.Setup.BrokerageSetupHandler+<>c__DisplayClass24_0.<Setup>b__1 () [0x000fb] in <bc4479b96615496c83f0743fe1039576>:0 No default market set for security type: Futureand here is the Code:using System;
using System.Linq;
using QuantConnect.Data;
using QuantConnect.Orders;
using QuantConnect.Securities;
using QuantConnect.Indicators;

namespace QuantConnect.Algorithm.CSharp
    /// <summary>
    /// EMA cross with SP500 E-mini futures
    /// In this example, we demostrate how to trade futures contracts using
    /// a equity to generate the trading signals
    /// It also shows how you can prefilter contracts easily based on expirations.
    /// It also shows how you can inspect the futures chain to pick a specific contract to trade.
    /// </summary>
    /// <meta name="tag" content="using data" />
    /// <meta name="tag" content="futures" />
    /// <meta name="tag" content="indicators" />
    /// <meta name="tag" content="strategy example" />
    public class FuturesMomentumAlgorithm : QCAlgorithm
        private const string RootSP500 = Futures.Indices.SP500EMini;
        public Symbol SP500 = QuantConnect.Symbol.Create(RootSP500, SecurityType.Future, Market.Oanda);
        private const decimal _tolerance = 0.001m;
        private const int _fastPeriod = 20;
        private const int _slowPeriod = 50;

        private ExponentialMovingAverage _fast;
        private ExponentialMovingAverage _slow;

        public bool IsReady { get { return _fast.IsReady && _slow.IsReady; } }
        public bool IsUpTrend { get { return IsReady && _fast > _slow * (1 + _tolerance); } }
        public bool IsDownTrend { get { return IsReady && _fast < _slow * (1 + _tolerance); } }

        public override void Initialize()
            SetStartDate(2016, 1, 1);
            SetEndDate(2018, 3, 15);
            SetWarmUp(Math.Max(_fastPeriod, _slowPeriod));

            // Adds SPY to be used in our EMA indicators
            var equity = AddEquity("SPY", Resolution.Daily);
            _fast = EMA(equity.Symbol, _fastPeriod, Resolution.Daily);
            _slow = EMA(equity.Symbol, _slowPeriod, Resolution.Daily);

            // Adds the future that will be traded and
            // set our expiry filter for this futures chain
            var futureSP500 = AddFuture(RootSP500);
            futureSP500.SetFilter(TimeSpan.Zero, TimeSpan.FromDays(182));
I saw on quantconnect.com/data that SP500 with Oanda is a Cfd; has this maybe to do with the error?Thanks for your help! ;=)NB: I'm not a programmer, just a guy trying to find a solution to automate my trades. ;=)