I try to run the sample code for kerasneuralnetwork on the "EURUSD" instead of the "SPY". 

I got the Error:

During the algorithm initialization, the following exception has occurred: KeyNotFoundException : EURUSD not found in portfolio. Request this data when initializing the algorithm. at QuantConnect.Scheduling.TimeRules.GetSecurity (QuantConnect.Symbol symbol) [0x0001b] in :0 at QuantConnect.Scheduling.TimeRules.AfterMarketOpen (QuantConnect.Symbol symbol, System.Double minutesAfterOpen, System.Boolean extendedMarketOpen) [0x0000d] in :0 at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke(System.Reflection.MonoMethod,object,object[],System.Exception&) at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in :0 at Initialize in main.py:line 53 KeyNotFoundException : EURUSD not found in portfolio. Request this data when initializing the algorithm. at QuantConnect.Scheduling.TimeRules.GetSecurity (QuantConnect.Symbol symbol) [0x0001b] in :0 at QuantConnect.Scheduling.TimeRules.AfterMarketOpen (QuantConnect.Symbol symbol, System.Double minutesAfterOpen, System.Boolean extendedMarketOpen) [0x0000d] in :0 at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke(System.Reflection.MonoMethod,object,object[],System.Exception&) at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in :0

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