List Symbols = new List

{

"EURUSD",

"AUDUSD",

"USDJPY",

"AUDJPY",

"EURCHF",

"EURGBP",

"EURJPY",

"GBPAUD",

"GBPJPY",

"NZDUSD",

"USDCAD",

"USDCHF",

"USDJPY",

};

List SymbolData = new List();

public override void Initialize()

{

SetCash(50000);

SetStartDate(2009, 1, 1);

foreach (var symbol in Symbols)

{

AddSecurity(SecurityType.Forex, symbol, Resolution.Minute);

First day of using C# so i am sure i have made a silly mistake

"Backtest Error: Error initializing algorithm: Algorithm.AddSecurity(): The key already existed in the dictionary."