AttributeError: 'TfPoseEstimator' object has no attribute 'persistent_sess'

[xtuyaowu]

got such errors,help!
[phormatics]# python server/app.py
Traceback (most recent call last):
File "server/app.py", line 27, in
pose_estimator = TfPoseEstimator(graph_path=settings.GRAPH_PATH, target_size=settings.PROCESSING_DIMS)
File "/data/app/yaowu/phormatics/server/helpers/estimator.py", line 257, in init
graph_def.ParseFromString(f.read())
File "/data/app/Anaconda/lib/python3.6/site-packages/tensorflow/python/lib/io/file_io.py", line 120, in read
self._preread_check()
File "/data/app/Anaconda/lib/python3.6/site-packages/tensorflow/python/lib/io/file_io.py", line 80, in _preread_check
compat.as_bytes(self.__name), 1024 * 512, status)
File "/data/app/Anaconda/lib/python3.6/site-packages/tensorflow/python/framework/errors_impl.py", line 519, in exit
c_api.TF_GetCode(self.status.status))
tensorflow.python.framework.errors_impl.NotFoundError: /data/app/yaowu/phormatics/models/mobilenet/graph_opt.pb; No such file or directory
Exception ignored in: <bound method TfPoseEstimator.del of <helpers.estimator.TfPoseEstimator object at 0x7fdeb5b2da58>>
Traceback (most recent call last):
File "/data/app/yaowu/phormatics/server/helpers/estimator.py", line 280, in del
self.persistent_sess.close()
AttributeError: 'TfPoseEstimator' object has no attribute 'persistent_sess'

[snehmehta]

got such errors,help!
[phormatics]# python server/app.py
Traceback (most recent call last):
File "server/app.py", line 27, in
pose_estimator = TfPoseEstimator(graph_path=settings.GRAPH_PATH, target_size=settings.PROCESSING_DIMS)
File "/data/app/yaowu/phormatics/server/helpers/estimator.py", line 257, in init
graph_def.ParseFromString(f.read())
File "/data/app/Anaconda/lib/python3.6/site-packages/tensorflow/python/lib/io/file_io.py", line 120, in read
self._preread_check()
File "/data/app/Anaconda/lib/python3.6/site-packages/tensorflow/python/lib/io/file_io.py", line 80, in _preread_check
compat.as_bytes(self.__name), 1024 * 512, status)
File "/data/app/Anaconda/lib/python3.6/site-packages/tensorflow/python/framework/errors_impl.py", line 519, in exit
c_api.TF_GetCode(self.status.status))
tensorflow.python.framework.errors_impl.NotFoundError: /data/app/yaowu/phormatics/models/mobilenet/graph_opt.pb; No such file or directory
Exception ignored in: <bound method TfPoseEstimator.del of <helpers.estimator.TfPoseEstimator object at 0x7fdeb5b2da58>>
Traceback (most recent call last):
File "/data/app/yaowu/phormatics/server/helpers/estimator.py", line 280, in del
self.persistent_sess.close()
AttributeError: 'TfPoseEstimator' object has no attribute 'persistent_sess'

hey i got same error so did you find any solution for it