Hello, I hate for this to be my first post here haha.

But I'm a newb and I ran into an issue with the Tiingo bootcamp that I'm trying to solve. I finally just pressed “Solution” and it still won't process without this error, so I think something must have changed on the backend. Here is the solution code and the error I'm getting.

Thank you in advance!

#1. Import Tiingo Data 

from QuantConnect.Data.Custom.Tiingo import *

from datetime import datetime, timedelta

import numpy as np



class TiingoNewsSentimentAlgorithm(QCAlgorithm):



    def Initialize(self):

        self.SetStartDate(2016, 11, 1)

        self.SetEndDate(2017, 3, 1)  

        

        #2. Add AAPL and NKE symbols to a Manual Universe 

        symbols = [Symbol.Create("AAPL", SecurityType.Equity, Market.USA), 

            Symbol.Create("NKE", SecurityType.Equity, Market.USA)]

        self.SetUniverseSelection(ManualUniverseSelectionModel(symbols))

        

        # 3. Add an instance of the NewsSentimentAlphaModel

        self.SetAlpha(NewsSentimentAlphaModel())

        

        self.SetPortfolioConstruction(EqualWeightingPortfolioConstructionModel()) 

        self.SetExecution(ImmediateExecutionModel()) 

        self.SetRiskManagement(NullRiskManagementModel())

        

# 4. Create a NewsSentimentAlphaModel class with Update() and OnSecuritiesChanged() methods

class NewsSentimentAlphaModel(AlphaModel):

    def __init__(self): 

        pass

    def Update(self, algorithm, data):

        insights = []

        return insights

    def OnSecuritiesChanged(self, algorithm, changes):

        pass

and here is the error I get:

Runtime Error: Object reference not set to an instance of an object. in AlphaModelPythonWrapper.cs:line 84	 (Open Stacktrace)