error: C:\build\master_winpack-bindings-win32-vc14-static\opencv\modules\imgproc\src\shapedescr.cpp:320: error: (-215) npoints >= 0 && (depth == CV_32F || depth == CV_32S) in function cv::contourArea

[pallavipundir]

Hi,

An error is coming in your code

[pratikpc]

@pallavipundir which file did you run?
This error usually occurs when someone who needed the second argument returned by findContours instead uses the first argument

This is a link to a similar issue that someone else faced
https://stackoverflow.com/questions/39475125/compatibility-issue-with-contourarea-in-opencv-3