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any possible to detect object with cascade training model and HOG feature

I'm an newbie to OpenCV 3.2.0. recently I train a object detector via opencv_traincascade with HOG feature type. Then I write the code for detecting object.

  HOGDescriptor hog_desc;
  if (hog_desc.load("hog-cascade.xml")) {
     Mat src, src_gray;
    src = imread("test.jpg");
    cvtColor(src, src_gray, COLOR_RGB2GRAY);
    equalizedHist(src_gray, src_gray);
    vector<rect> foundLocations;
    hog_desc.detectMultiScale(src_gray, foundLocations);    
  }

the last line of code raises the error OpenCV Error: Assertion failed( dsize.area() > 0 || (inv_scale_x > 0 && inv_scale_y > 0)) in size, file .../opencv/modules/imgproc/src/imgwarp.cpp, line 3493

my question is HOG detector was removed from opencv 3.2?