Issue with virtualenv - cannot activate

source is a shell command designed for users running on Linux (or any Posix, but whatever, not Windows).

On Windows, virtualenv creates a .bat/.ps1 file, so you should run venv\Scripts\activate instead (per the virtualenv documentation on the activate script).

Just run activate, without an extension, so the right file will get used regardless of whether you're using cmd.exe or PowerShell.

I was also facing the same issue in my Windows 10 machine. What steps i tried were:

Go to andconda terminal Step 1

pip3 install -U pip virtualenv

Step 2

virtualenv --system-site-packages -p python ./venv

or

virtualenv --system-site-packages -p python3 ./venv

Step 3

.\venv\activate

You can check it via spider tool in anaconda by typing import tensorflow as tf