OpenCV GTK+2.x error

Question

I had installed OpenCV following these steps (). After trying to compile one examples,i got this error :

OpenCV Error: Unspecified error (The function is no         


        

Answer 1

In case what they mentioned above doesn't work, try:

pip install opencv-python

for python2, or

pip3 install opencv-python

for python3

Answer 2

for windows just uninstall the OpenCV pip uninstall opencv-python and reinstall pip install opencv-python