Opennmt-py: the example in Quickstart failed on pytorch 0.4

[liangbright]

train.py -data data/demo -save_model demo-model

RuntimeError: Trying to backward through the graph a second time, but the buffers have already been freed. Specify retain_graph=True when calling backward the first time.

[tulongthienvu]

To run on pytorch 0.4, you must fix some errors because the lib hasn't been migrated to pytorch 0.4. I think if you are new, you should use pytorch 0.3.1 first.

[nikhilweee]

You could try this fork. https://github.com/Ubiqus/OpenNMT-py

[da03]

Hi all, sorry for the delay, but we just updated our code to support pytorch 0.4.

[da03]

Closing this for now, please let us know if the current code doesn't work.