Help: Error Futures Data History Call

Based on the error message you provided, it seems like the issue is related to the way you're trying to access the historical data. The error message suggests that there's a mismatch between the parameters you're providing and the ones expected by the method.

In the code you provided, you're trying to create a TradeBar object using data from the historical dataframe. However, the error message suggests that the parameters you're providing to the TradeBar constructor don't match the expected types.

Here's the line of code that seems to be causing the issue:

tradeBar = TradeBar(tTime, self.symbol, row.open, row.high, row.low, row.close, row.volume, TDelt)

The TradeBar constructor expects the following parameters: datetime, symbol, open, high, low, close, volume, period. The error message suggests that one or more of these parameters are not of the expected type.

One potential issue could be with the tTime variable. You're setting tTime to index, which is the index of the current row in the hist dataframe. If the index of this dataframe is not a datetime object, this could be causing the issue.

You could try converting the index to a datetime object before using it to create the TradeBar:

tTime = pd.to_datetime(index)

If this doesn't solve the issue, I would recommend checking the types of all the variables you're passing to the TradeBar constructor to make sure they match the expected types.

Also, please make sure to check the QuantConnect API documentation for more information on how to use the History method and the TradeBar class.

All types are verified before calling TradeBar constructor and still get the error

Hello,

I tried a simple backtest but did not get any error.
It would be helpful if you could attach the code for debugging.

The error usually occurs when there is a mismatch of function signature values. This could also happen if one of the function parameters feed in nan values.