r example failing to build

[DaveEdge1]

I am getting the following error when launching the r example as well as my own R projects.
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Step 42/69 : RUN export EXPANDED_CRAN_MIRROR_URL="$(. /etc/os-release && echo https://packagemanager.posit.co/all/__linux__/${VERSION_CODENAME}/2024-01-10+kZwhsmgb | envsubst)" && R --quiet -e "install.packages(c('devtools', 'IRkernel', 'shiny'), repos=Sys.getenv("EXPANDED_CRAN_MIRROR_URL"))" && R --quiet -e "IRkernel::installspec(prefix=Sys.getenv("NB_PYTHON_PREFIX"))"
---> Running in 74182db1a7fa

install.packages(c('devtools', 'IRkernel', 'shiny'), repos=Sys.getenv("EXPANDED_CRAN_MIRROR_URL"))
�[91mInstalling packages into ‘/srv/rlibs’
(as ‘lib’ is unspecified)
�[0m�[91mWarning: unable to access index for repository https://packagemanager.posit.co/all/linux/jammy/2024-01-10+kZwhsmgb/src/contrib:
cannot open URL 'https://packagemanager.posit.co/all/linux/jammy/2024-01-10+kZwhsmgb/src/contrib/PACKAGES'
�[0m�[91mWarning message:
packages ‘devtools’, ‘IRkernel’, ‘shiny’ are not available for this version of R

Versions of these packages for your version of R might be available elsewhere,
see the ideas at
https://cran.r-project.org/doc/manuals/r-patched/R-admin.html#Installing-packages
�[0m>

IRkernel::installspec(prefix=Sys.getenv("NB_PYTHON_PREFIX"))
�[91mError in loadNamespace(x) : there is no package called ‘IRkernel’
Calls: loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
Execution halted
�[0m ---> Removed intermediate container 74182db1a7fa
The command '/bin/sh -c export EXPANDED_CRAN_MIRROR_URL="$(. /etc/os-release && echo https://packagemanager.posit.co/all/linux/${VERSION_CODENAME}/2024-01-10+kZwhsmgb | envsubst)" && R --quiet -e "install.packages(c('devtools', 'IRkernel', 'shiny'), repos=Sys.getenv("EXPANDED_CRAN_MIRROR_URL"))" && R --quiet -e "IRkernel::installspec(prefix=Sys.getenv("NB_PYTHON_PREFIX"))"' returned a non-zero code: 1Error in event stream: Error
"