docker建立镜像时出现如下错误

W: GPG error: https://developer.download.nvidia.cn/compute/cuda/repos/ubuntu1804/x86_64  Release: The following signatures were invalid: BADSIG F60F4B3D7FA2AF80 cudatools<cudatools@nvidia.com>
E: The repository'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64  Release' is not signed.                                                                                                                                                                                    

解决办法1

gpg --keyserver keyserver.ubuntu.com --recv-keys F60F4B3D7FA2AF80

转自github

解决办法2

sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup
vi /etc/apt/sources.list

文件里面加上

#Ali Cloud
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

然后

sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get -f install

解决办法3

（我就是用了这个才解决了，前两个有人有用，对我没用，万分感谢下面这位大哥）

1.安装apt-transport-https
2.list里面的http改为https
3.执行下面这个

wget -qO - https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/7fa2af80.pub | sudo apt-key add -

搞定！