Error when trying to use resnext50


(WG) #1

FileNotFoundError: [Errno 2] No such file or directory: ‘…/…/…/fastai/fastai/weights/resnext_50_32x4d.pth’

arch = resnext50

tfms = tfms_from_model(arch, sz, aug_tfms=transforms_side_on, max_zoom=1.1)
data = ImageClassifierData.from_paths(PATH, bs=bsz, tfms=tfms)
learn = ConvLearner.pretrained(arch, data, precompute=True, ps=0.5)

Wiki: Lesson 2
(Jeremy Howard (Admin)) #2

Download the weights from here: http://files.fast.ai/models/weights.tgz . Untar them into the fastai folder inside your fastai repo.


(WG) #3

Thanks @jeremy!


(Anders) #5

cd to /home/paperspace/fastai/courses/dl1/fastai

curl -O http://files.fast.ai/models/weights.tgz
tar zxvf weights.tgz


(Mario) #6

Thanks by me too, wanted to follow practic’ly as well - even though 've seen the vid in the doctors waiting room. Was eager to try at home and then … sombody asked the question and the answer was right there.
What a forum!


#7

This seems to have worked for me, thank you. I say seems because my kernel continues to die when I try to run:
learn = ConvLearner.pretrained(arch,data,precompute = True). But I don’t get the error.


(Gabriel Sanchez) #8

In Google Colab the path is:
/usr/local/lib/python3.6/dist-packages/fastai/