How To Solve The Error “Cannot import name ‘_registerMatType’ from ‘cv2.cv2′” in Python

The Error “Cannot import name ‘_registerMatType’ from ‘cv2.cv2′” happens because the version of the opencv-python and opencv-python-headless packages are not compatible. So to fix this Error, you have to install the opencv-python and opencv-python-headless packages with the same version. Let’s learn more about it with the explanation and example below.

How Does This Error Occur?

The Error “Cannot import name ‘_registerMatType’ from ‘cv2.cv2′” happens because the version of the opencv-python and opencv-python-headless packages are incompatible. So, when you run the project of The Object Detection API, you will get an Error like this.

You can check the version of the opencv-python and opencv-python-headless packages by running the following command.

pip list |findstr opencv

If these versions are not the same, an Error will occur when you work with the opencv packages.

Solve The Error “Cannot import name ‘_registerMatType’ from ‘cv2.cv2′” in Python

To fix this Error, you can reinstall the opencv-python and opencv-python-headless packages but sometimes, it is not useful. Another effective solution is installing the opencv-python and opencv-python-headless packages with the same version. Let’s learn more about it in the next title below.

Install the opencv-python and opencv-python-headless packages with the same version

To fix this Error, you have to uninstall the current opencv-python and opencv-python-headless packages first by running the following command.

pip uninstall opencv-python-headless

pip uninstall opencv-python

Then, you reinstall the opencv-python and opencv-python-headless packages with the same version by running the following command.

pip install opencv-python==version
pip install opencv-python-headless==version

After doing that, the Error will be fixed.

Fix this Error in Jupyter Notebook or Google Colaboratory

Same with the first method, you have to uninstall the current opencv-python and opencv-python-headless packages first by running the following command.

!pip uninstall opencv-python-headless

!pip uninstall opencv-python

Then, you reinstall the opencv-python and opencv-python-headless packages with the same version by running the following command.

!pip install opencv-python==version
!pip install opencv-python-headless==version

Summary

We have shown you how to solve the Error “Cannot import name ‘_registerMatType’ from ‘cv2.cv2′” in Python. This Error occurs when you are using the opencv-python and opencv-python-headless packages with the not same version. To fix this Error, you have to reinstall the opencv-python and opencv-python-headless packages with the same version. Choose the solution that is best for your environment. If you have any questions about this tutorial, leave your comment below, and I will answer your questions. Thanks!