D29-D31 程式導讀輸入資料型態.ipynb 下載coco資料出現錯誤

---------------------------------------------------------------------------
JSONDecodeError                           Traceback (most recent call last)
###draft_code_symbol_lessthen###ipython-input-2-02137f420a4d> in ###draft_code_symbol_lessthen###module>
      3 '''Image default路徑在 images/train2014/'''
      4 '''要先下載coco資料'''
----> 5 dataset=COCODetection(os.getcwd(),'train2014',transform=SSDAugmentation(300))
      6 data_loader=torch.utils.data.DataLoader(dataset,batch_size=1)
      7 batch_iterator = iter(data_loader)

E:\github\1st-DL-CVMarathon\Homework\Object Detection 程式導讀\data\coco.py in __init__(self, root, image_set, transform, target_transform, dataset_name)
     94         self.root = osp.join(root, IMAGES, image_set)
     95         self.coco = COCO(osp.join(root, ANNOTATIONS,
---> 96                                   INSTANCES_SET.format(image_set)))
     97         self.ids = list(self.coco.imgToAnns.keys())
     98         self.transform = transform

D:\ProgramData\Anaconda3\lib\site-packages\pycocotools\coco.py in __init__(self, annotation_file)
     83             print('loading annotations into memory...')
     84             tic = time.time()
---> 85             dataset = json.load(open(annotation_file, 'r'))
     86             assert type(dataset)==dict, 'annotation file format {} not supported'.format(type(dataset))
     87             print('Done (t={:0.2f}s)'.format(time.time()- tic))

D:\ProgramData\Anaconda3\lib\json\__init__.py in load(fp, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
    294         cls=cls, object_hook=object_hook,
    295         parse_float=parse_float, parse_int=parse_int,
--> 296         parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
    297 
    298 

D:\ProgramData\Anaconda3\lib\json\__init__.py in loads(s, encoding, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
    346             parse_int is None and parse_float is None and
    347             parse_constant is None and object_pairs_hook is None and not kw):
--> 348         return _default_decoder.decode(s)
    349     if cls is None:
    350         cls = JSONDecoder

D:\ProgramData\Anaconda3\lib\json\decoder.py in decode(self, s, _w)
    335 
    336         """
--> 337         obj, end = self.raw_decode(s, idx=_w(s, 0).end())
    338         end = _w(s, end).end()
    339         if end != len(s):

D:\ProgramData\Anaconda3\lib\json\decoder.py in raw_decode(self, s, idx)
    353             obj, end = self.scan_once(s, idx)
    354         except StopIteration as err:
--> 355             raise JSONDecodeError("Expecting value", s, err.value) from None
    356         return obj, end

JSONDecodeError: Expecting value: line 1 column 48418926 (char 48418925)
D29-D31 程式導讀 輸入資料型態.ipynb 下載coco資料出現錯誤

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D29-D31 程式導讀輸入資料型態.ipynb 下載coco資料出現錯誤
