apex install error

[yimjinkyu1]

build tracker '/tmp/pip-req-tracker-omyaqxpd'
Skipping wheel build for apex, due to binaries being disabled for it

Given no hashes to check 137 links for project 'pip': discarding no candidates

Removed build tracker: '/tmp/pip-req-tracker-omyaqxpd'

ubuntu 18.04

CUDA Version: 10.1

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Fri_Feb__8_19:08:17_PST_2019
Cuda compilation tools, release 10.1, V10.1.105

print(torch.__version__)
1.5.0+cu101

print(torchvision.__version__)
0.6.0+cu101

[learnercat]

Same here.
Given no hashes to check 137 links for project 'pip': discarding no candidates Removed build tracker: '/tmp/pip-req-tracker-k78nrv9c'

[learnercat]

I have just solved it.
Please try as below:
Clone the latest version of apex.
git clone https://github.com/NVIDIA/apex.git
cd apex/
python setup.py install --cuda_ext --cpp_ext
Note* If you run on jupyter notebook, please restart the kernel and test.