When trying to use Neptune callback in pets dataset training I hit an error after first epoch ends.
Here is what I’m doing:
from fastai2.vision.all import *
from fastai2.callback.neptune import NeptuneCallback
path = untar_data(URLs.PETS)/'images'
def is_cat(x): return x[0].isupper()
dls = ImageDataLoaders.from_name_func(
path, get_image_files(path), valid_pct=0.2, seed=42,
label_func=is_cat, item_tfms=Resize(224))
learn = cnn_learner(dls, resnet34, metrics=error_rate, cbs=NeptuneCallback())
learn.fine_tune(1)
At this moment the training starts, I can see progress bar output, then at the end of the epoch I see:
NoExperimentContext: Unable to find current active experiment
During handling of the above exception, another exception occurred:
AttributeError Traceback (most recent call last)
/usr/local/lib/python3.6/dist-packages/fastprogress/fastprogress.py in on_iter_end(self)
155 total_time = format_time(time.time() - self.main_bar.start_t)
156 self.text = f'Total time: {total_time} <p>' + self.text
--> 157 self.out.update(HTML(self.text))
158
159 def add_child(self, child):
AttributeError: 'NBMasterBar' object has no attribute 'out'
It seems it’s not able to find an active experiment although I see data reported to netpune.ai
