Problem during with Crowd Human dataset

[clueless2020]

Thank you for this awesome repository. The code works fin for VOC 2007 dataset. However, for Crowd Person dataset, I am getting the following error during model training in DSOD_train.ipynb.

The error

---

UnknownError Traceback (most recent call last)
/usr/local/lib/python3.8/dist-packages/tensorflow/python/eager/context.py in execution_mode(mode)
2112 ctx.executor = executor_new
-> 2113 yield
2114 finally:

/usr/local/lib/python3.8/dist-packages/tensorflow/python/data/ops/iterator_ops.py in _next_internal(self)
729 with context.execution_mode(context.SYNC):
--> 730 ret = gen_dataset_ops.iterator_get_next(
731 self._iterator_resource,

/usr/local/lib/python3.8/dist-packages/tensorflow/python/ops/gen_dataset_ops.py in iterator_get_next(iterator, output_types, output_shapes, name)
2578 except _core._NotOkStatusException as e:
-> 2579 _ops.raise_from_not_ok_status(e, name)
2580 except _core._FallbackException:

/usr/local/lib/python3.8/dist-packages/tensorflow/python/framework/ops.py in raise_from_not_ok_status(e, name)
6861 # pylint: disable=protected-access
-> 6862 six.raise_from(core._status_to_exception(e.code, message), None)
6863 # pylint: enable=protected-access

~/.local/lib/python3.8/site-packages/six.py in raise_from(value, from_value)

UnknownError: IndexError: tuple index out of range
Traceback (most recent call last):

File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/ops/script_ops.py", line 247, in call
return func(device, token, args)

File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/ops/script_ops.py", line 135, in call
ret = self._func(*args)

File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/autograph/impl/api.py", line 620, in wrapper
return func(*args, **kwargs)

File "/home/user5/detection/pedestrian/ssd_detectors/ssd_data.py", line 506, in get_sample
img_tmp, y_tmp = self.random_sized_crop(img, y)

File "/home/user5/detection/pedestrian/ssd_detectors/ssd_data.py", line 452, in random_sized_crop
num_coords = target.shape[1] - 1

IndexError: tuple index out of range

 [[{{node EagerPyFunc}}]] [Op:IteratorGetNext]

During handling of the above exception, another exception occurred:

UnknownError Traceback (most recent call last)
in
20
21 for i in tqdm(range(gen_train.num_batches), 'training', leave=False):
---> 22 x, y_true = next(iterator_train)
23 metric_values = step(x, y_true, training=True)
24 metric_util.update(metric_values, training=True)

/usr/local/lib/python3.8/dist-packages/tensorflow/python/data/ops/iterator_ops.py in next(self)
745 def next(self):
746 try:
--> 747 return self._next_internal()
748 except errors.OutOfRangeError:
749 raise StopIteration

/usr/local/lib/python3.8/dist-packages/tensorflow/python/data/ops/iterator_ops.py in _next_internal(self)
737 return self._element_spec._from_compatible_tensor_list(ret) # pylint: disable=protected-access
738 except AttributeError:
--> 739 return structure.from_compatible_tensor_list(self._element_spec, ret)
740
741 @Property

/usr/lib/python3.8/contextlib.py in exit(self, type, value, traceback)
129 value = type()
130 try:
--> 131 self.gen.throw(type, value, traceback)
132 except StopIteration as exc:
133 # Suppress StopIteration unless it's the same exception that

/usr/local/lib/python3.8/dist-packages/tensorflow/python/eager/context.py in execution_mode(mode)
2114 finally:
2115 ctx.executor = executor_old
-> 2116 executor_new.wait()
2117
2118

/usr/local/lib/python3.8/dist-packages/tensorflow/python/eager/executor.py in wait(self)
67 def wait(self):
68 """Waits for ops dispatched in this executor to finish."""
---> 69 pywrap_tfe.TFE_ExecutorWaitForAllPendingNodes(self._handle)
70
71 def clear_error(self):

UnknownError: IndexError: tuple index out of range
Traceback (most recent call last):

File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/ops/script_ops.py", line 247, in call
return func(device, token, args)

File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/ops/script_ops.py", line 135, in call
ret = self._func(*args)

File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/autograph/impl/api.py", line 620, in wrapper
return func(*args, **kwargs)

File "/home/user5/detection/pedestrian/ssd_detectors/ssd_data.py", line 506, in get_sample
img_tmp, y_tmp = self.random_sized_crop(img, y)

File "/home/user5/detection/pedestrian/ssd_detectors/ssd_data.py", line 452, in random_sized_crop
num_coords = target.shape[1] - 1

IndexError: tuple index out of range

 [[{{node EagerPyFunc}}]]

[mvoelk]

Empty ground truth?