Not able to activate virtual environment using python 3.12.0 in vs code

Question

I'm working on webapp using python, django and html, css. For that I need to create a virtual environment for that i installed Python 3.12.0 and i run this command "py -m venv myenv" in powershell terminal in vs code. Then the virtual environment created successfully and then I tried to activate the "myenv" and for that i run this command: ".\myenv\Scripts\Activate.ps1" but this giving me error:

.\env\Scripts\Activate : The term '.\env\Scripts\Activate' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of 
the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ .\env\Scripts\Activate
+ ~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (.\env\Scripts\Activate:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

I also know that there is no file or module with the name "Activate". In the past I created venv in vs code that time every thing worked perfectly but now not working. I also says that I tried to use AI and for that I installed Python 3.8.0 and after that all of this happening. I just need to solution that can create venv.