Error when building due to GPG key

[KarstenVogt]

Hi Julian,,

when building the image I get this error message:

Sending build context to Docker daemon 4.096kB
Step 1/4 : FROM nvidia/cuda:11.1-devel-ubuntu20.04
---> 0185bd6d8ed9
Step 2/4 : ARG OPENCV_VERSION=4.5.0
---> Using cache
---> bc03e2b25986
Step 3/4 : RUN apt-get update && apt-get upgrade -y && apt-get install -y python3-pip build-essential cmake git wget unzip yasm pkg-config libswscale-dev libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libavformat-dev libpq-dev libxine2-dev libglew-dev libtiff5-dev zlib1g-dev libjpeg-dev libavcodec-dev libavformat-dev libavutil-dev libpostproc-dev libswscale-dev libeigen3-dev libtbb-dev libgtk2.0-dev pkg-config python3-dev python3-numpy && rm -rf /var/lib/apt/lists/*
---> Running in dbd39bcc9b3e
Get:1 http://archive.ubuntu.com/ubuntu focal InRelease [265 kB]
Get:2 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Get:3 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease [1581 B]
Get:4 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal-backports InRelease [108 kB]
Err:3 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC
Ign:6 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu2004/x86_64 InRelease
Get:7 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu2004/x86_64 Release [564 B]
Get:8 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu2004/x86_64 Release.gpg [833 B]
Get:9 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [1816 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages [11.3 MB]
Get:11 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu2004/x86_64 Packages [2445 B]
Get:12 http://security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [874 kB]
Get:13 http://security.ubuntu.com/ubuntu focal-security/multiverse amd64 Packages [27.5 kB]
Get:14 http://security.ubuntu.com/ubuntu focal-security/restricted amd64 Packages [1174 kB]
Get:15 http://archive.ubuntu.com/ubuntu focal/restricted amd64 Packages [33.4 kB]
Get:16 http://archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages [177 kB]
Get:17 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages [1275 kB]
Get:18 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [2245 kB]
Get:19 http://archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 Packages [30.2 kB]
Get:20 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [1161 kB]
Get:21 http://archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages [1252 kB]
Get:22 http://archive.ubuntu.com/ubuntu focal-backports/main amd64 Packages [51.2 kB]
Get:23 http://archive.ubuntu.com/ubuntu focal-backports/universe amd64 Packages [26.0 kB]
Reading package lists...
W: GPG error: https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/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/ubuntu2004/x86_64 InRelease' is not signed.
The command '/bin/sh -c apt-get update && apt-get upgrade -y && apt-get install -y python3-pip build-essential cmake git wget unzip yasm pkg-config libswscale-dev libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libavformat-dev libpq-dev libxine2-dev libglew-dev libtiff5-dev zlib1g-dev libjpeg-dev libavcodec-dev libavformat-dev libavutil-dev libpostproc-dev libswscale-dev libeigen3-dev libtbb-dev libgtk2.0-dev pkg-config python3-dev python3-numpy && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100

I hope you can help.

[JulianAssmann]

I'm sorry but I currently do not have a machine with a Nvidia GPU, so I cannot reproduce the error in order to fix it :(

[CodiTrixta]

For me I found this helped:

RUN apt-key del 7fa2af80
RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub

Obviously just change the ubuntu version in the link to your version

--EDIT
Sorry put this before RUN apt-get update ...

[KarstenVogt]

Thanks a lot, I'll try this. :)

[JulianAssmann]

Did the suggestion help to resolve the issue?