ModuleNotFoundError: No module named 'PIL'

This error message is indicating that the module named 'PIL' is not installed in your Python environment. PIL (Python Imaging Library) is a library used for working with images in Python.

To resolve this error, you can install the PIL module using pip, which is the package installer for Python:

1. Open a terminal or command prompt.
2. Type the following command and press Enter: `pip install Pillow`

This will install the PIL module under the name Pillow, which is a fork of the original PIL library. Once installed, you can import the module using the following line of code:

from PIL import Image

Make sure to include the appropriate import statement in your code wherever you are using the PIL library.