AttributeError: keypoints

[ravish33]

Got this error on running the code:

label_map_util.py in convert_label_map_to_categories(label_map, max_num_classes, use_display_name)
AttributeError Traceback (most recent call last)
in
39 # dictionary mapping integers to appropriate string labels would be fine
40 label_map = label_map_util.load_labelmap(PATH_TO_LABELS)
---> 41 categories = label_map_util.convert_label_map_to_categories(label_map, max_num_classes=NUM_CLASSES, use_display_name=True)
42 category_index = label_map_util.create_category_index(categories)
43
~\Documents\Face Mask Detection Project\face_mask_detection_May_28_2020\models-master\models-master\research\object_detection\utils\label_map_util.py in convert_label_map_to_categories(label_map, max_num_classes, use_display_name)
131 list_of_ids_already_added.append(item.id)
132 category = {'id': item.id, 'name': name}
--> 133 if item.keypoints:
134 keypoints = {}
135 list_of_keypoint_ids = []
AttributeError: keypoints