nmt errors_impl.NotFoundError: None.de; No such file or directory

Traceback (most recent call last): File "/home/prasad/anaconda3/envs/nmt/lib/python3.5/runpy.py", line 193, in _run_module_as_main "main", mod_spec) File "/home/prasad/anaconda3/envs/nmt/lib/python3.5/runpy.py", line 85, in _run_code exec(code, run_globals) File "/home/prasad/nmt/nmt/nmt.py", line 605, in tf.app.run(main=main, argv=[sys.argv[0]] + unparsed) File "/home/prasad/anaconda3/envs/nmt/lib/python3.5/site-packages/tensorflow/python/platform/app.py", line 129, in run _sys.exit(main(argv)) File "/home/prasad/nmt/nmt/nmt.py", line 598, in main run_main(FLAGS, default_hparams, train_fn, inference_fn) File "/home/prasad/nmt/nmt/nmt.py", line 591, in run_main train_fn(hparams, target_session=target_session) File "/home/prasad/nmt/nmt/train.py", line 303, in train sample_src_data = inference.load_data(dev_src_file) File "/home/prasad/nmt/nmt/inference.py", line 75, in load_data inference_data = f.read().splitlines() File "/home/prasad/anaconda3/envs/nmt/lib/python3.5/codecs.py", line 493, in read newdata = self.stream.read() File "/home/prasad/anaconda3/envs/nmt/lib/python3.5/site-packages/tensorflow/python/lib/io/file_io.py", line 119, in read self._preread_check() File "/home/prasad/anaconda3/envs/nmt/lib/python3.5/site-packages/tensorflow/python/lib/io/file_io.py", line 79, in _preread_check compat.as_bytes(self.__name), 1024 * 512, status) File "/home/prasad/anaconda3/envs/nmt/lib/python3.5/site-packages/tensorflow/python/framework/errors_impl.py", line 473, in exit c_api.TF_GetCode(self.status.status)) ## # tensorflow.python.framework.errors_impl.NotFoundError: None.de; No such file or directory My tensorflow version is 1.5.0-dev20171124 and also have installed tf-nightly. thanks in advance