No such file: './transE_%s_%s_best.pkl'

Hi,
I met a problem when I tried the code "transR_pytorch.py" to run the demo data. The error messenge showed: No such file: './transE_%s_%s_best.pkl'. But, when I ran the script "transE_pytorch.py", it didn't generate any file like './transE_%s_%s_best.pkl'. May I know how I could generate './transE_%s_%s_best.pkl'?

Thank you and best regards.
Jianing