Unable to build OpenCV wheel

[enosjebanadar]

This is the error I am getting, on searching online I found it was a issue with python 3.6 But I could not find other version image too

Building wheels for collected packages: opencv-python
  Building wheel for opencv-python (pyproject.toml): started
  Building wheel for opencv-python (pyproject.toml): finished with status 'error'

ERROR: Command errored out with exit status 1:
   command: /usr/local/bin/python /usr/local/lib/python3.6/site-packages/pip/_vendor/pep517/in_process/_in_process.py build_wheel /tmp/tmpwm4pey78
       cwd: /tmp/pip-install-l454tfkw/opencv-python_7bf2d60136f04d07901515548312d1fc
  Complete output (66 lines):

OS : Ubuntu 20.04 LTS

[jerinka]

How to reproduce this error? Came during docker build?