How do I troubleshoot issues with my Python virtual environment?

I'm having trouble activating my Python virtual environment. What should I do?

First, make sure you're in the correct directory where your virtual environment is located. You can activate it using the command source venv/bin/activate on macOS/Linux or venv\Scripts\activate on Windows.

I tried that, but I get an error saying 'venv not found'. What could be wrong?

This error usually means that the virtual environment wasn't created properly. You can recreate it by running python -m venv venv in your project directory.

Okay, I recreated it, but now I can't install packages. It says 'permission denied'.

This might be due to permission issues. Try running your command prompt or terminal as an administrator, or use pip install --user package_name to install packages locally.