Traceback (most recent call last):

 "/home/shanu/.virtualenvs/typeset_dev/local/lib/python2.7/site-packages/nose/suite.py", line 209, in run
self.setUp()

 "/home/shanu/.virtualenvs/typeset_dev/local/lib/python2.7/site-packages/nose/suite.py", line 292, in setUp
self.setupContext(ancestor)

 "/home/shanu/.virtualenvs/typeset_dev/local/lib/python2.7/site-packages/nose/suite.py", line 315, in setupContext
try_run(context, names)

 "/home/shanu/.virtualenvs/typeset_dev/local/lib/python2.7/site-packages/nose/util.py", line 471, in try_run
return func()

 "/home/shanu/typeset_revamped/typeset/libs/django_nose/testcases.py", line 50, in setUpClass
transaction.enter_transaction_management(using=db)AttributeError: 'module' object has no attribute 'enter_transaction_management'
Traceback (most recent call last):

 "./tools/train_net.py", line 107, in <module>
imdb, roidb = combined_roidb(args.imdb_name)

 "./tools/train_net.py", line 72, in combined_roidb
roidbs = [get_roidb(s) for s in imdb_names.split('+')]

 "./tools/train_net.py", line 69, in get_roidb
roidb = get_training_roidb(imdb)

 "/home/exx/ajeet/py-faster-rcnn/tools/../lib/fast_rcnn/train.py", line 121, in get_training_roidb
imdb.append_flipped_images()

 "/home/exx/ajeet/py-faster-rcnn/tools/../lib/datasets/imdb.py", line 106, in append_flipped_images
boxes = self.roidb[i]['boxes'].copy()

 "/home/exx/ajeet/py-faster-rcnn/tools/../lib/datasets/imdb.py", line 67, in roidb
self._roidb = self.roidb_handler()

 "/home/exx/ajeet/py-faster-rcnn/tools/../lib/datasets/coco.py", line 124, in selective_search_roidb
return self._roidb_from_proposals('selective_search')

 "/home/exx/ajeet/py-faster-rcnn/tools/../lib/datasets/coco.py", line 150, in _roidb_from_proposals
method_roidb = self._load_proposals(method, gt_roidb)

 "/home/exx/ajeet/py-faster-rcnn/tools/../lib/datasets/coco.py", line 189, in _load_proposals
raw_data = sio.loadmat(box_file)['boxes']

 "/usr/local/lib/python2.7/dist-packages/scipy/io/matlab/mio.py", line 134, in loadmat
MR = mat_reader_factory(file_name, appendmat, **kwargs)

 "/usr/local/lib/python2.7/dist-packages/scipy/io/matlab/mio.py", line 57, in mat_reader_factory
byte_stream = _open_file(file_name, appendmat)

 "/usr/local/lib/python2.7/dist-packages/scipy/io/matlab/mio.py", line 23, in _open_file
return open(file_like, 'rb')IOError: [Errno 2] No such file or directory: '/home/exx/ajeet/py-faster-rcnn/data/coco_proposals/selective_search/mat/COCO_train2014/COCO_train2014_0000002/COCO_train2014_000000262145.mat'`