Error installing isaac ros common

trying to install isaac ros common in X86_64 machine (linux 20.04)
at /isaac_ros_common/scripts i launched the run_dev.sh:

/isaac_ros_common/scripts
Building x86_64 base as image: isaac_ros_dev-x86_64
Sending build context to Docker daemon 17.88MB
Step 1/38 : ARG BASE_IMAGE=nvcr.io/nvidia/tritonserver:21.08-py3
Step 2/38 : FROM ${BASE_IMAGE}
—> 3eb9530b33c0
Step 3/38 : ENV DEBIAN_FRONTEND=noninteractive
—> Using cache
—> de112225b81a
Step 4/38 : RUN apt-get update && apt-get install -y bash-completion build-essential clang-format cmake curl git gnupg2 locales lsb-release rsync software-properties-common wget vim unzip mlocate libgoogle-glog-dev && rm -rf /var/lib/apt/lists/*
—> Running in 9fd803b622dc
Get:1 http_archive.ubuntu.com/ubuntu focal InRelease [265 kB]
Get:2 https_developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease [1575 B]
Get:3 http_security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Err:2 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
Get:4 http_archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Get:5 http_archive.ubuntu.com/ubuntu focal-backports InRelease [108 kB]
Get:6 http_archive.ubuntu.com/ubuntu focal/universe amd64 Packages [11.3 MB]
Get:7 http_security.ubuntu.com/ubuntu focal-security/multiverse amd64 Packages [25.8 kB]
Get:8 http_security.ubuntu.com/ubuntu focal-security/main amd64 Packages [1777 kB]
Get:9 http_security.ubuntu.com/ubuntu focal-security/restricted amd64 Packages [1139 kB]
Get:10 http_archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages [177 kB]
Get:11 http_archive.ubuntu.com/ubuntu focal/restricted amd64 Packages [33.4 kB]
Get:12 http_archive.ubuntu.com/ubuntu focal/main amd64 Packages [1275 kB]
Get:13 http_security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [870 kB]
Get:14 http_archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 Packages [30.3 kB]
Get:15 http_archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [2192 kB]
Get:16 http_archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [1155 kB]
Get:17 http_archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages [1216 kB]
Get:18 http_archive.ubuntu.com/ubuntu focal-backports/main amd64 Packages [51.2 kB]
Get:19 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 install -y bash-completion build-essential clang-format cmake curl git gnupg2 locales lsb-release rsync software-properties-common wget vim unzip mlocate libgoogle-glog-dev && rm -rf /var/lib/apt/lists/*’ returned a non-zero code: 100
Running isaac_ros_dev-x86_64-container
Unable to find image ‘isaac_ros_dev-x86_64:latest’ locally
docker: Error response from daemon: pull access denied for isaac_ros_dev-x86_64, repository does not exist or may require ‘docker login’: denied: requested access to the resource is denied.
See ‘docker run --help’

Not sure how many things I am doing wrong!

I solved it : Missing keys to docker file x86_64 · Issue #21 · NVIDIA-ISAAC-ROS/isaac_ros_common · GitHub