Web Reference: The best way for me to solve this problem was to install python3-venv and create a new environment, then install my packages, because any method presented here could not solve the problem and always resulted in the same error. Jul 23, 2025 · In this article we will see why it happens and how to fix it step by step. The "No module named 'cv2'" error is encountered in python when we are trying to import the OpenCV library. This error specifies that the Python interpreter cannot find the OpenCV module in the current environment. May 26, 2023 · In summary, the ModuleNotFoundError: No module named 'cv2' occurs when the opencv-python library is not installed in your Python environment. To resolve this error, you need to run the pip install opencv-python command.
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