[2018-11-07 09:02:33,685] [PID 12] [ThreadPoolExecutor-0_3] [e8c78c3d-278b-4232-8b7b-e9be381f8393] [molten.app] [ERROR] An unhandled exception occurred.
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/molten/app.py", line 190, in __call__
    response = handler()
  File "/usr/local/lib/python3.7/site-packages/molten/dependency_injection.py", line 191, in resolved_fn
    return fn(**params)
  File "/usr/local/lib/python3.7/site-packages/molten/contrib/prometheus.py", line 81, in middleware
    response = handler()
  File "/usr/local/lib/python3.7/site-packages/molten/dependency_injection.py", line 191, in resolved_fn
    return fn(**params)
  File "/usr/local/lib/python3.7/site-packages/molten/contrib/request_id.py", line 96, in middleware
    response = handler()
  File "/usr/local/lib/python3.7/site-packages/molten/dependency_injection.py", line 191, in resolved_fn
    return fn(**params)
  File "/usr/local/lib/python3.7/site-packages/molten/middleware.py", line 34, in handle
    response = handler()
  File "/usr/local/lib/python3.7/site-packages/molten/dependency_injection.py", line 191, in resolved_fn
    return fn(**params)
  File "/app/app.py", line 74, in predict
    return model.predict(data)
  File "/app/model.py", line 60, in predict
    pclass, _, outputs = learn.predict(img)
  File "/usr/local/lib/python3.7/site-packages/fastai/vision/learner.py", line 50, in predict
    res = self.pred_batch()[0]
  File "/usr/local/lib/python3.7/site-packages/fastai/basic_train.py", line 213, in pred_batch
    preds,_ = self.get_preds(is_test, with_loss=False, n_batch=1, pbar=pbar)
  File "/usr/local/lib/python3.7/site-packages/fastai/basic_train.py", line 206, in get_preds
    activ=_loss_func2activ(self.loss_func), loss_func=lf, n_batch=n_batch, pbar=pbar)
  File "/usr/local/lib/python3.7/site-packages/fastai/basic_train.py", line 38, in get_preds
    zip(*validate(model, dl, cb_handler=cb_handler, pbar=pbar, average=False, n_batch=n_batch))]
  File "/usr/local/lib/python3.7/site-packages/fastai/basic_train.py", line 49, in validate
    for xb,yb in progress_bar(dl, parent=pbar, leave=(pbar is not None)):
  File "/usr/local/lib/python3.7/site-packages/fastprogress/fastprogress.py", line 65, in __iter__
    for i,o in enumerate(self._gen):
  File "/usr/local/lib/python3.7/site-packages/fastai/basic_data.py", line 82, in __iter__
    for b in self.dl: yield self.proc_batch(b)
  File "/usr/local/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 615, in __next__
    batch = self.collate_fn([self.dataset[i] for i in indices])
  File "/usr/local/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 615, in <listcomp>
    batch = self.collate_fn([self.dataset[i] for i in indices])
  File "/usr/local/lib/python3.7/site-packages/fastai/vision/data.py", line 219, in __getitem__
    x,y = self.ds[idx]
  File "/usr/local/lib/python3.7/site-packages/fastai/basic_data.py", line 21, in __getitem__
    if self.item is None: return self._get_x(i),self._get_y(i)
  File "/usr/local/lib/python3.7/site-packages/fastai/basic_data.py", line 17, in _get_x
    def _get_x(self,i): return self.x[i]
AttributeError: 'SingleClassificationDataset' object has no attribute 'x'