@Chris_Palmer, I have a couple of patches for that issue. It’s possible that it’s unique to Windows for any of a variety of possible reasons. The patches will make lesson1 run until you hit universal Value error (probably fastai lib error). It appears to me that there’s more patches needed as the problematic pattern is elsewhere in model.cp file. I’m guessing this is an issue with Python because it’s lacks static typed checking. TypePython anyone? I’ll open an issue/PR (done -
https://github.com/fastai/fastai/issues/71) on fastai’s github for the patches.
In fastai/fastai-master/fastai/model.cp:
Original: loss = raw_loss = self.crit(output, y)
Fix: loss = raw_loss = self.crit(output, y.long()) # patch
Original: return preds, self.crit(preds,y)
Fix: return preds, self.crit(preds,y.long()) # patch
After applying the patches, if you see this error “ValueError: Found input variables with inconsistent numbers of samples: [2000, 5]” you’ve reached the same error as other platforms (https://github.com/fastai/fastai/issues/70). Move on to something else until fastai fixes it.