Hi!
I installed lean cli and phyton successfully, but when I try to backtest my project I'm getting error:
PS C:\Projects\quantconnect> lean backtest "myfirstproject"
Usage: lean [OPTIONS] COMMAND [ARGS]...
Try 'lean --help' for help.
Error: No such command 'backtest'.
PS C:\Projects\quantconnect>
Please help, what I'm missing?
Juan C.
I think you have a old version of Python or/and Lean,
Can you write:
 and
in your CMD shell?
Maryana
I just installed them yesterday,
PS C:\Projects\quantconnect> lean --version
lean, version 0.1.2
PS C:\Projects\quantconnect> python --version
Python 3.10.5
PS C:\Projects\quantconnect>
Â
Juan C.
Python version is ok, but lean version is very old, I dont know why,Â
I recommend you first install conda environment  https://conda.io and later install Lean over it (that is the recommended by quantconnect) , its works for me, otherwise you can have problems about dependences
Alexandre Catarino
Hi Maryana ,
Please upgrade Lean-CLI to its latest version (thank you, Juan C.):
pip install --upgrade lean
and downgrade python to version 3.9.x. There is a known issue with Docker and python 3.10. We will add this issue to Lean-CLI docs.
Best regards,
Alex
Maryana
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