SystemError when saving the model.

[TigranGalstyan]

We are training on AMR2.0 train set, and starting from 2nd epoch pickle.dump in model.save_model crashes, raising 'SystemError: error return without exception set'. When training on AMR2.0 + BIO_AMR train set, the exception occurs right after the first epoch. Training only on BIO_AMR works fine.
I see unused function (model.toJSON). Can it replace model.save_model and if yes, would that help in this case?
Thanks

[Juicechuan]

You could try to uncomment this line and try saving the model again.

This toJSON method is not fully supported.