Problem installing TensorFlow on Ubuntu

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GPU model and CUDA version: (skip if not application)
OS Platform: Ubuntu 18.04
Python version: 3.6.9
OpenCV version:
TensorFlow version: 2.0

Describe the issue

I'm installing TensorFlow 2.0 in my laptop with Ubuntu 18.04. I successfully installed all packages (following every step from https://www.pyimagesearch.com/2019/12/09/how-to-install-tensorflow-2-0-on-ubuntu/) but I got an error when I test TensorFlow: ~$ python Python 3.6.9 (default, Jan 26 2021, 15:33:00) [GCC 8.4.0] on linux Type "help", "copyright", "credits" or "license" for more information.

import tensorflow as tf Illegal instruction (core dumped)

My Bundle is StarterBundle.

PyImageSearch / Deep-Learning-for-Computer-Vision-with-Python