nvidia/cuda:10.1-cudnn7-devel 編譯問題

W: GPG error: https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64  InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC
E: The repository 'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64  InRelease' is not signed.
The command '/bin/sh -c apt-get update && apt-get install -y 	python3-opencv ca-certificates python3-dev git wget sudo ninja-build' returned a non-zero code: 100

Dockerfile

RUN apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/3bf863cc.pub