Error while loading TRAIN-gluon-ssd_300_vgg16_atrous_coco

[venkatchintha]

Hello,

I got error while running this code

gtf.Dataset(root, img_dir, anno_file, batch_size=batch_size);

100%|██████████| 49281/49281 [00:01<00:00, 38741.31it/s]
100%|██████████| 49281/49281 [22:31<00:00, 36.46it/s]

MXNetError Traceback (most recent call last)
in ()
----> 1 gtf.Dataset(root, img_dir, anno_file, batch_size=batch_size);

8 frames
/content/Monk_Object_Detection/1_gluoncv_finetune/lib/detector_prototype.py in Dataset(self, root, img_dir, anno_file, batch_size, num_workers)
148 os.system(cmd2);
149
--> 150 self.system_dict["local"]["train_dataset"] = gcv.data.RecordFileDetection('train.rec')
151
152

/usr/local/lib/python3.6/dist-packages/gluoncv/data/recordio/detection.py in init(self, filename, coord_normalized)
64 """
65 def init(self, filename, coord_normalized=True):
---> 66 super(RecordFileDetection, self).init(filename)
67 self._coord_normalized = coord_normalized
68

/usr/local/lib/python3.6/dist-packages/mxnet/gluon/data/vision/datasets.py in init(self, filename, flag, transform)
244 """
245 def init(self, filename, flag=1, transform=None):
--> 246 super(ImageRecordDataset, self).init(filename)
247 self._flag = flag
248 self._transform = transform

/usr/local/lib/python3.6/dist-packages/mxnet/gluon/data/dataset.py in init(self, filename)
182 self.idx_file = os.path.splitext(filename)[0] + '.idx'
183 self.filename = filename
--> 184 self._record = recordio.MXIndexedRecordIO(self.idx_file, self.filename, 'r')
185
186 def getitem(self, idx):

/usr/local/lib/python3.6/dist-packages/mxnet/recordio.py in init(self, idx_path, uri, flag, key_type)
243 self.key_type = key_type
244 self.fidx = None
--> 245 super(MXIndexedRecordIO, self).init(uri, flag)
246
247 def open(self):

/usr/local/lib/python3.6/dist-packages/mxnet/recordio.py in init(self, uri, flag)
69 self.pid = None
70 self.is_open = False
---> 71 self.open()
72
73 def open(self):

/usr/local/lib/python3.6/dist-packages/mxnet/recordio.py in open(self)
246
247 def open(self):
--> 248 super(MXIndexedRecordIO, self).open()
249 self.idx = {}
250 self.keys = []

/usr/local/lib/python3.6/dist-packages/mxnet/recordio.py in open(self)
77 self.writable = True
78 elif self.flag == "r":
---> 79 check_call(_LIB.MXRecordIOReaderCreate(self.uri, ctypes.byref(self.handle)))
80 self.writable = False
81 else:

/usr/local/lib/python3.6/dist-packages/mxnet/base.py in check_call(ret)
251 """
252 if ret != 0:
--> 253 raise MXNetError(py_str(_LIB.MXGetLastError()))
254
255

MXNetError: [23:35:57] src/io/local_filesys.cc:209: Check failed: allow_null: LocalFileSystem::Open "train.rec": No such file or directory
Stack trace:
[bt] (0) /usr/local/lib/python3.6/dist-packages/mxnet/libmxnet.so(+0x2ea6de8) [0x7f1c7eef6de8]
[bt] (1) /usr/local/lib/python3.6/dist-packages/mxnet/libmxnet.so(+0x2e9e9ba) [0x7f1c7eeee9ba]
[bt] (2) /usr/local/lib/python3.6/dist-packages/mxnet/libmxnet.so(MXRecordIOReaderCreate+0x2d) [0x7f1c7e5772cd]
[bt] (3) /usr/lib/x86_64-linux-gnu/libffi.so.6(ffi_call_unix64+0x4c) [0x7f1ccb1e1dae]
[bt] (4) /usr/lib/x86_64-linux-gnu/libffi.so.6(ffi_call+0x22f) [0x7f1ccb1e171f]
[bt] (5) /usr/lib/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so(_ctypes_callproc+0x2b4) [0x7f1ccb3f55c4]
[bt] (6) /usr/lib/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so(+0x11c33) [0x7f1ccb3f5c33]
[bt] (7) /usr/bin/python3(_PyObject_FastCallKeywords+0x19c) [0x5a9eec]
[bt] (8) /usr/bin/python3() [0x50a783]

Link to code--https://github.com/venkatchintha/Project0/blob/master/Copy_of_TRAIN_gluon_ssd_300_vgg16_atrous_coco.ipynb

[abhi-kumar]

The issue is with data format. We will check your notebook and get back to you soon on this

[abhi-kumar]

The notebook on sample data is running fine, please check if the data provided to the training engine exists or not.