kria-runtime not building from build command

[pandorazboxx]

I ran the build command for kria-runtime:

docker build --build-arg BUILD_DATE="$(date -u +'%Y/%m/%d %H:%M')" -f kria-runtime . -t kria-runtime

but the build fails on stage 7. It looks like there's some issue adding the PPA from this command:

RUN apt-get update ; \
    apt-get install -y software-properties-common ; \
    add-apt-repository -y ppa:xilinx-apps/ppa ; \
    add-apt-repository -y ppa:ubuntu-xilinx/sdk ; \
    add-apt-repository -y ppa:ubuntu-xilinx/gstreamer ; \
    apt-get update ;

Because when the next command tries to run, it cannot find the xilinx packages needed such as: vitis-ai-library, vitis-ai-runtime, vvas-essentials, libxilinx-vcu-omx1 or xilinx-vcu-omx-utils

This is the error that I am receiving:

 => [ 6/12] RUN apt-get update ;     apt-get install -y software-properties-common ;     add-apt-repository -y p  64.9s
 => ERROR [ 7/12] RUN apt-get install --yes --no-install-recommends     vitis-ai-library     vitis-ai-runtime      0.9s
------
 > [ 7/12] RUN apt-get install --yes --no-install-recommends     vitis-ai-library     vitis-ai-runtime     v4l-utils     alsa-base     alsa-utils     pulseaudio     gstreamer1.0-tools     gstreamer1.0-plugins-base     gstreamer1.0-plugins-good     gstreamer1.0-x     gstreamer1.0-plugins-bad     wget     vvas-essentials     unzip     python3-pip     python3-dev     gstreamer1.0-omx-generic     libxilinx-vcu-omx1     xilinx-vcu-omx-utils ;:
#0 0.464 Reading package lists...
#0 0.847 Building dependency tree...
#0 0.925 Reading state information...
#0 0.929 E: Unable to locate package vitis-ai-library
#0 0.929 E: Unable to locate package vitis-ai-runtime
#0 0.929 E: Unable to locate package vvas-essentials
#0 0.929 E: Unable to locate package libxilinx-vcu-omx1
#0 0.929 E: Unable to locate package xilinx-vcu-omx-utils
------
ERROR: failed to solve: executor failed running [/bin/sh -c apt-get install --yes --no-install-recommends     vitis-ai-library     vitis-ai-runtime     v4l-utils     alsa-base     alsa-utils     pulseaudio     gstreamer1.0-tools     gstreamer1.0-plugins-base     gstreamer1.0-plugins-good     gstreamer1.0-x     gstreamer1.0-plugins-bad     wget     vvas-essentials     unzip     python3-pip     python3-dev     gstreamer1.0-omx-generic     libxilinx-vcu-omx1     xilinx-vcu-omx-utils ;]: exit code: 100

[pandorazboxx]

I assume the package vitis-ai is located here: https://launchpad.net/~ubuntu-xilinx/+archive/ubuntu/sdk

And I stopped the build after stage 6 and interactively tried to walk through the commands to add the ppas and install the packages. but I'm still getting no package found.