Installation problems

[ccuadradon]

Hi,

Thanks for multistateutilsInstalling directly using install.packages("multistateutils") suggest that the installation is not available for current R version (using R version 4.1.0 (2021-05-18) -- "Camp Pontanezen" OS X-64 bits)

Warning in install.packages :
package ‘multistateutils’ is not available for this version of R

Additionally, the installation using devtools is produce some problems

─ installing the package to build vignettes
E creating vignettes (18.5s)
--- re-building ‘Examples.Rmd’ using rmarkdown
Error: processing vignette 'Examples.Rmd' failed with diagnostics:
The 'rmarkdown' package should be installed and declared as a dependency of the 'multistateutils' package (e.g., in the 'Suggests' field of DESCRIPTION), because the latter contains vignette(s) built with the 'rmarkdown' package. Please see yihui/knitr#1864 for more information.
--- failed re-building ‘Examples.Rmd’

SUMMARY: processing the following file failed:
‘Examples.Rmd’

Error: Vignette re-building failed.
Execution halted
Error: Failed to install 'multistateutils' from GitHub:
System command 'R' failed, exit status: 1, stdout + stderr (last 10 lines):
E> --- re-building ‘Examples.Rmd’ using rmarkdown
E> Error: processing vignette 'Examples.Rmd' failed with diagnostics:
E> The 'rmarkdown' package should be installed and declared as a dependency of the 'multistateutils' package (e.g., in the 'Suggests' field of DESCRIPTION), because the latter contains vignette(s) built with the 'rmarkdown' package. Please see yihui/knitr#1864 for more information.
E> --- failed re-building ‘Examples.Rmd’
E>
E> SUMMARY: processing the following file failed:
E> ‘Examples.Rmd’
E>
E> Error: Vignette re-building failed.
E> Execution halted

Any clues of how to solve this issue? Thanks!