BACKTESTING -> Failed to load market data for t1 period. It is not supported with m1 backtesting data source.

Hello, 

I try test my boot - but I have got error while i try get acces to Tick object in backtest - Failed to load market data for t1 period. It is not supported with m1 backtesting data source.

I tried with diferent timeframes - and message always is the same ? 

protected override void OnTick()
        {
                Tick tick = MarketData.GetTicks().Last(0);
                Print("Time:{0},Ask={1},BID={2}",tick.Time,tick.Ask,tick.Bid);
        }

Does anybony know, what is best solution for test tick values ?