I run decode ,then has a error ?

[fiser321]

(env-0.12.0) root@op-System-Product-Name:/home/github/deep-text-corrector# ./predict.sh
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcublas.so locally
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcudnn.so locally
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcufft.so locally
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcuda.so.1 locally
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcurand.so locally
Traceback (most recent call last):
File "correct_text.py", line 439, in
tf.app.run()
File "/home/env/python3.5/env-0.12.0/lib/python3.5/site-packages/tensorflow/python/platform/app.py", line 43, in run
sys.exit(main(sys.argv[:1] + flags_passthrough))
File "correct_text.py", line 414, in main
data_reader = MovieDialogReader(config, FLAGS.train_path)
File "/home/github/deep-text-corrector/text_corrector_data_readers.py", line 82, in init
dataset_copies=dataset_copies)
File "/home/github/deep-text-corrector/data_reader.py", line 32, in init
for tokens in self.read_tokens(train_path):
File "/home/github/deep-text-corrector/text_corrector_data_readers.py", line 114, in read_tokens
with open(path, "r") as f:
FileNotFoundError: [Errno 2] No such file or directory: 'train'

run script ?
python correct_text.py --test_path ./test.txt --config DefaultMovieDialogConfig --data_reader_type MovieDialogReader --model_path ./movie_dialog_model --decode

why???????????????????? but FLAGS.train_path is None