🐛 Bug

Traceback (most recent call last):
File "/home/lucifer/LibSrcs/pycharm-community-2018.3.2/helpers/pydev/pydevd.py", line 1741, in
main()
File "/home/lucifer/LibSrcs/pycharm-community-2018.3.2/helpers/pydev/pydevd.py", line 1735, in main
globals = debugger.run(setup['file'], None, None, is_module)
File "/home/lucifer/LibSrcs/pycharm-community-2018.3.2/helpers/pydev/pydevd.py", line 1135, in run
pydev_imports.execfile(file, globals, locals) # execute the script
File "/home/lucifer/LibSrcs/pycharm-community-2018.3.2/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
exec(compile(contents+"\n", file, 'exec'), glob, loc)
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/my_run/run_local/e2e_faster_rcnn_R_50_C4_1x/train_net_e2e_faster_rcnn_R_50_C4_1x.py", line 201, in
main()
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/my_run/run_local/e2e_faster_rcnn_R_50_C4_1x/train_net_e2e_faster_rcnn_R_50_C4_1x.py", line 194, in main
model = train(cfg, args.local_rank, args.distributed)
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/my_run/run_local/e2e_faster_rcnn_R_50_C4_1x/train_net_e2e_faster_rcnn_R_50_C4_1x.py", line 94, in train
arguments,
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/engine/trainer.py", line 72, in do_train
for iteration, (images, targets, _) in enumerate(data_loader, start_iter):
File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 537, in next
return self._process_next_batch(batch)
File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 577, in _process_next_batch
raise batch.exc_type(batch.exc_msg)
IndexError: Traceback (most recent call last):
File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/_utils/worker.py", line 99, in _worker_loop
samples = collate_fn([dataset[i] for i in batch_indices])
File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/_utils/worker.py", line 99, in
samples = collate_fn([dataset[i] for i in batch_indices])
File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/dataset.py", line 85, in getitem
return self.datasets[dataset_idx][sample_idx]
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/data/datasets/coco.py", line 94, in getitem
target = target.clip_to_image(remove_empty=True)
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/bounding_box.py", line 223, in clip_to_image
return self[keep]
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/bounding_box.py", line 208, in getitem
bbox.add_field(k, v[item])
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/segmentation_mask.py", line 555, in getitem
selected_instances = self.instances.getitem(item)
File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/segmentation_mask.py", line 464, in getitem
selected_polygons.append(self.polygons[i])
IndexError: list index out of range

To Reproduce

reproducible code:

from maskrcnn_benchmark.config import cfg
from maskrcnn_benchmark.data.build import make_data_loader


config_path = '/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/my_run/run_local/' \
              'e2e_faster_rcnn_R_50_C4_1x/e2e_faster_rcnn_R_50_C4_1x.yaml'
cfg.merge_from_file(config_path)
dl = make_data_loader(cfg)

for iteration, (images, targets) in enumerate(dl):
    print(iteration)

Dataset [ConcatDataset] has no categories attribute, labels.json file won't be created
Traceback (most recent call last):
  File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 3319, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-2-173e8ccc2b92>", line 1, in <module>
    runfile('/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/my_code/dev/02_debugs/debug_dataloader.py', wdir='/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/my_code/dev/02_debugs')
  File "/home/lucifer/LibSrcs/pycharm-community-2018.3.2/helpers/pydev/_pydev_bundle/pydev_umd.py", line 198, in runfile
    pydev_imports.execfile(filename, global_vars, local_vars)  # execute the script
  File "/home/lucifer/LibSrcs/pycharm-community-2018.3.2/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/my_code/dev/02_debugs/debug_dataloader.py", line 8, in <module>
    for iteration, (images, targets, _) in enumerate(dl, 0):
  File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 551, in __next__
    return self._process_next_batch(batch)
  File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 577, in _process_next_batch
    raise batch.exc_type(batch.exc_msg)
IndexError: Traceback (most recent call last):
  File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/_utils/worker.py", line 99, in _worker_loop
    samples = collate_fn([dataset[i] for i in batch_indices])
  File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/_utils/worker.py", line 99, in <listcomp>
    samples = collate_fn([dataset[i] for i in batch_indices])
  File "/home/lucifer/.virtualenvs/maskrcnn-benchmark/lib/python3.6/site-packages/torch/utils/data/dataset.py", line 85, in __getitem__
    return self.datasets[dataset_idx][sample_idx]
  File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/data/datasets/coco.py", line 94, in __getitem__
    target = target.clip_to_image(remove_empty=True)
  File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/bounding_box.py", line 223, in clip_to_image
    return self[keep]
  File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/bounding_box.py", line 208, in __getitem__
    bbox.add_field(k, v[item])
  File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/segmentation_mask.py", line 555, in __getitem__
    selected_instances = self.instances.__getitem__(item)
  File "/home/lucifer/Projects/05_maskrcnn-benchmark/maskrcnn-benchmark/maskrcnn_benchmark/structures/segmentation_mask.py", line 464, in __getitem__
    selected_polygons.append(self.polygons[i])
IndexError: list index out of range

Expected behavior

I have tried follow by #881,#1053,#725 and so on. But they seems not work for my situation.

any help is appreciated

Environment

Collecting environment information...
PyTorch version: 1.0.0.dev20190409
Is debug build: No
CUDA used to build PyTorch: 9.0.176
OS: Ubuntu 16.04.5 LTS
GCC version: (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609
CMake version: version 3.5.1
Python version: 3.6
Is CUDA available: Yes
CUDA runtime version: Could not collect
GPU models and configuration: GPU 0: GeForce GTX 1070
Nvidia driver version: 384.130
cuDNN version: Could not collect
Versions of relevant libraries:
[pip3] numpy==1.17.4
[pip3] torch-nightly==1.0.0.dev20190409
[pip3] torchvision-nightly==0.2.3
[conda] Could not collect:

Additional context