Errors running example xml to coco

[qianjiangcn]

I am running issues when using the example jupyter notebook:

TypeError Traceback (most recent call last)
in
----> 1 dataset = Dataset.from_xml(Path("data/xml_example"))

~/anaconda3/lib/python3.6/site-packages/imantics/dataset.py in from_xml(cls, xml_folder, name)
27 xml = bf.data(fromstring(open(imgp.with_suffix(".xml"),"r").read()))
28 for ann in xml["annotation"]["object"]:
---> 29 cat = ann["name"]["$"]
30 categories.append(cat)
31 categories = list(set(categories))

TypeError: string indices must be integers

[saurabheights]

@qianjiangcn Please upload xml file and basic code to reproduce the issue.