OpenCV NoneType object has no attribute shape

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I  am working on Raspberry Pi with OpenCV and I was trying out a tutorial. But I am facing an error when I compile it.

This is the error: 

'NoneType' object has no attribute 'shape'.

This is the tutorial I am trying out: http://www.pyimagesearch.com/2015/09/14/ball-tracking-with-opencv/.

Can someone help me solve this?

May 9, 2022 in Python by Kichu
 • 19,040 points • 3,071 views

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