Problems loading lantern.so when running R CMD check.

[ralmond]

I'm working on a package which uses torch. I installed torch by doing

install.package("cuda12.8",repos=...)
install.packge("torch")
torch::install_torch()

Which apparently ran without errors.

Things seem to be working properly when I run my testthat tests. However, when I run
R CMD check to thoroughly test my package, I'm consistently getting the following error:

Warning message:
ℹ torch failed to start, restart your R session to try again.
ℹ You might need to reinstall torch using `install_torch()`
✖ /home/ralmond/R/x86_64-pc-linux-gnu-library/4.5/torch/lib/liblantern.so -
  libcudart.so.12: cannot open shared object file: No such file or directory
Caused by error:
! /home/ralmond/R/x86_64-pc-linux-gnu-library/4.5/torch/lib/liblantern.so - libcudart.so.12: cannot open shared object file: No such file or directory 
Error : Lantern is not loaded. Please use `install_torch()` to install additional dependencies.
Error: unable to load R code in package ‘CPTtorch’
Execution halted
ERROR: lazy loading failed for package ‘CPTtorch’
* removing ‘/home/ralmond/ralmond1/Projects/CPTtorch.Rcheck/CPTtorch’

Checking in my torch directory, I see:

$ ls libcudart*
libcudart-256e6409.so.12  libcudart-c3a75b33.so.12

Is there a missing simlink?