I am trying to warm up data:

for i in range(len(self.tickers)):
            symbol = self.AddEquity(self.tickers[i], Resolution.Daily).Symbol
self.SetWarmup(timedelta(60))
 

And yet I am getting error messages:

"Backtest Handled Error: TECB: The security does not have an accurate price as it has not yet received a bar of data."

Any idea what can cause that?

TY!