I download the project from github. I compile it with VS2019, and updated the config file. I then try to run a simple algorithm. An error comes up.

ERROR:: WorkerThread.<.ctor>b__7_0(): WorkerThread(): exception thrown when running task Python.Runtime.PythonException: NameError : name 'Resolution' is not defined

I would like to ask which library should I import? Thank you.

Attached the code I am testing. I have already added to the head of the file but don't know how to continue:

from QuantConnect.Algorithm import *

Thank you very much.