I am currently running the very beginning of the tutorial.
(Note. my version is 0.4.0 for Pytorch)
At the second step, I meet a few error and asking for solutions of these.
python train.py -data data/demo -save_model demo-model
The first error is that inside “OpenNMT-py/onmt/Models.py” line 611, give me an error like:
File "OpenNMT-py/onmt/Models.py", line 611, in detach h.detach_() RuntimeError: Can't detach views in-place. Use detach() instead
So I simply change it to detach() from detach_() as it recommended.
Also, after I fix it, I meet an another error in below of “OpenNMT-py/onmt/Loss.py”.
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.
To fix this, I add “retain_graph=True”.
After then, I meet an another error in “OpenNMT-py/onmt/Trainer.py”, line 51, in ppl". The error message is:
File "OpenNMT-py/onmt/Trainer.py", line 51, in ppl return math.exp(min(self.loss / self.n_words, 100)) RuntimeError: Expected object of type torch.FloatTensor but found type torch.LongTensor for argument #2 'other'
Now, I have no ideas to fix this.