Docker image build fail

[kaiyi98]

Hello！
I followed the instructions to clone the repository and build the docker image, however, upon running
docker build -t hloc:latest .
the installation fails with the following error:

Sending build context to Docker daemon  38.13GB
Step 1/13 : FROM colmap/colmap:latest
 ---> e29170b1b6b0
Step 2/13 : MAINTAINER Paul-Edouard Sarlin
 ---> Using cache
 ---> 04ad3833dd1d
Step 3/13 : ARG PYTHON_VERSION=3.8
 ---> Using cache
 ---> 9feb097614c8
Step 4/13 : RUN apt-get update -y
 ---> Running in cddd1a6ba023
Get:1 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64  InRelease [1581 B]
Err:1 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
Ign:2 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64  InRelease
Get:3 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64  Release [564 B]
Get:4 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64  Release.gpg [833 B]
Get:5 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:6 http://archive.ubuntu.com/ubuntu bionic InRelease
Get:7 https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64  Packages [73.8 kB]
Get:8 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:9 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages [1636 kB]
Get:10 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [83.3 kB]
Get:11 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [3785 kB]
Get:12 http://security.ubuntu.com/ubuntu bionic-security/restricted amd64 Packages [1688 kB]
Get:13 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 Packages [23.8 kB]
Get:14 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [3373 kB]
Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/restricted amd64 Packages [1728 kB]
Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [2410 kB]
Get:17 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [30.8 kB]
Get:18 http://archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [20.6 kB]
Get:19 http://archive.ubuntu.com/ubuntu bionic-backports/main amd64 Packages [64.0 kB]
Reading package lists...
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 no longer signed.
The command '/bin/sh -c apt-get update -y' returned a non-zero code: 100

Not sure how to fix this.
Hope to get your help, thank you！

[sarlinpe]

The latest COLMAP docker image on dockerhub is indeed outdated (4-year old and uses Ubuntu 18). You can build a fresh COLMAP image yourself following these instructions. Then building the hloc image should use the local COLMAP image. If you can confirm that this works then I'll update the instructions.

[scott-vsi]

see also: #320 (comment)