absl.flags._exceptions.UnrecognizedFlagError: Unknown command line flag 'new_emb_mat'

I am trying to get the repo working in TF1.7. I was able to get the training done with the help of dev branch for TF 1.4. But I failed in testing. If I set it flags.DEFINE_integer("new_emb_mat", 0, "embedding matrix"), I got result F1 0.74 and accuracy 0.629. Is it normal? What value should we pass to new_emb_mat?

The error I got originally was :

Traceback (most recent call last):
File "/anaconda/envs/py35/lib/python3.5/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/anaconda/envs/py35/lib/python3.5/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/home/adminye/bi-att-flow/basic/cli.py", line 128, in
tf.app.run()
File "/anaconda/envs/py35/lib/python3.5/site-packages/tensorflow/python/platform/app.py", line 126, in run
_sys.exit(main(argv))
File "/home/adminye/bi-att-flow/basic/cli.py", line 125, in main
m(config)
File "/home/adminye/bi-att-flow/basic/main.py", line 26, in main
_test(config)
File "/home/adminye/bi-att-flow/basic/main.py", line 143, in _test
config.new_emb_mat = new_emb_mat
File "/anaconda/envs/py35/lib/python3.5/site-packages/tensorflow/python/platform/flags.py", line 88, in __setattr__
return self.__dict__['__wrapped'].__setattr__(name, value)
File "/anaconda/envs/py35/lib/python3.5/site-packages/absl/flags/_flagvalues.py", line 496, in __setattr__
return self._set_unknown_flag(name, value)
File "/anaconda/envs/py35/lib/python3.5/site-packages/absl/flags/_flagvalues.py", line 374, in _set_unknown_flag
raise _exceptions.UnrecognizedFlagError(name, value)
absl.flags._exceptions.UnrecognizedFlagError: Unknown command line flag 'new_emb_mat'