no module named 'torchvision.layers'

[Ppaddington]

When I run your code, there is an error 'no module named 'torchvision.layers'. and I can not use the link

pip install git+git://github.com/pytorch/vision.git@24577864e92b72f7066e1ed16e978e873e19d13d.

The solution of
sudo apt-get install git-core
pip install git+git://github.com/pytorch/vision.git@24577864e92b72f7066e1ed16e978e873e19d13d
doesn't work.

[JackWhite-rwx]

hello,this is my pip:
torch==1.1.0,torchvision==0.3.0

this is my code:
from torchvision.ops import RoIAlign

l hope that my suggest is useful for you