gtf.Dataset() in weapon detection example of gluonCV finetune gives error

[Shreyashwaghe]

When execute the command --> gtf.Dataset(root, img_dir, anno_file, batch_size=batch_size);
i get this error, (i am working with jypter nb on a amd cpu and amd gpu machine)

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

~/Desktop/Monk AI Object/Monk_Object_Detection-master/example_notebooks/1_gluoncv_finetune/1_gluoncv_finetune/lib/detector_prototype.py in Dataset(self, root, img_dir, anno_file, batch_size, num_workers)
104 os.system(cmd2);
105
--> 106 self.system_dict["local"]["train_dataset"] = gcv.data.RecordFileDetection('train.rec')
107
108

~/anaconda3/lib/python3.7/site-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

~/anaconda3/lib/python3.7/site-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

~/anaconda3/lib/python3.7/site-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):

~/anaconda3/lib/python3.7/site-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):

~/anaconda3/lib/python3.7/site-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):

~/anaconda3/lib/python3.7/site-packages/mxnet/recordio.py in open(self)
246
247 def open(self):
--> 248 super(MXIndexedRecordIO, self).open()
249 self.idx = {}
250 self.keys = []

~/anaconda3/lib/python3.7/site-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:

~/anaconda3/lib/python3.7/site-packages/mxnet/base.py in check_call(ret)
251 """
252 if ret != 0:
--> 253 raise MXNetError(py_str(_LIB.MXGetLastError()))
254
255

MXNetError: [12:22:37] src/io/local_filesys.cc:209: Check failed: allow_null: LocalFileSystem::Open "train.rec": No such file or directory
Stack trace:
[bt] (0) /home/shreyash/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so(+0x2b94bf8) [0x7f329a933bf8]
[bt] (1) /home/shreyash/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so(+0x2b8c7ca) [0x7f329a92b7ca]
[bt] (2) /home/shreyash/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so(MXRecordIOReaderCreate+0x2d) [0x7f329a07d58d]
[bt] (3) /home/shreyash/anaconda3/lib/python3.7/lib-dynload/../../libffi.so.6(ffi_call_unix64+0x4c) [0x7f32c7365ec0]
[bt] (4) /home/shreyash/anaconda3/lib/python3.7/lib-dynload/../../libffi.so.6(ffi_call+0x22d) [0x7f32c736587d]
[bt] (5) /home/shreyash/anaconda3/lib/python3.7/lib-dynload/_ctypes.cpython-37m-x86_64-linux-gnu.so(_ctypes_callproc+0x2ce) [0x7f32c757bf7e]
[bt] (6) /home/shreyash/anaconda3/lib/python3.7/lib-dynload/_ctypes.cpython-37m-x86_64-linux-gnu.so(+0x139b4) [0x7f32c757c9b4]
[bt] (7) /home/shreyash/anaconda3/bin/python(_PyObject_FastCallKeywords+0x49b) [0x555ba7021d2b]
[bt] (8) /home/shreyash/anaconda3/bin/python(_PyEval_EvalFrameDefault+0x537e) [0x555ba707d7ae]

[abhi-kumar]

Please check if "train.rec" if formed somewhere in your workspace

[Shreyashwaghe]

train.lst is formed, not train.rec

[abhi-kumar]

Closing due to inactivity