* installing *source* package ‘hcrnn’ ...
** this is package ‘hcrnn’ version ‘0.1.2’
** using staged installation
** R
** byte-compile and prepare package for lazy loading
in method for ‘forward’ with signature ‘object="PolynomialBasis",u="torch_tensor"’: no definition for class “torch_tensor”
in method for ‘forward’ with signature ‘object="CosineBasis",u="torch_tensor"’: no definition for class “torch_tensor”
Warning: undefined slot classes in definition of "KDEBasis": centers(class "torch_tensor")
in method for ‘forward’ with signature ‘object="KDEBasis",u="torch_tensor"’: no definition for class “torch_tensor”
Error in library(torchvision) : there is no package called ‘torchvision’
Error: unable to load R code in package ‘hcrnn’
Execution halted
ERROR: lazy loading failed for package ‘hcrnn’
* removing ‘/srv/hornik/tmp/CRAN_pretest/hcrnn.Rcheck/hcrnn’