Problem with running code

[Faisalsouz]

I have this issue with following line of code.
python example.py --datasets VOC --img_path invoices-PascalVOC-export/JPEGImages --label invoices-PascalVOC-export/Annotations --convert_output_path yolo_converted --img_type ".jpg" --manipast_path yolo_converted --cls_list_file C:\Users\fkhalil\primeStone\deep_net\darknet\data\invoiceLabels\invoices-PascalVOC-export\classes.names

Error message:
VOC Parsing Result : False, msg : ERROR : , moreInfo : <class 'StopIteration'>  Format.py       224

Note: Classes contains the name of all classed I have use in Vott application to label the images.