No module named 'cv2'

The error message "No module named 'cv2'" indicates that the OpenCV library is not installed or is not accessible in the current Python environment.

To resolve this issue, you can follow these steps:

1. Install OpenCV library using pip:

pip install opencv-python

2. Verify that the installation was successful by importing cv2:

import cv2

If you still encounter the same error, you may need to check if the OpenCV library is installed in the correct Python environment or if there are any conflicts with other libraries.