Ao instalar o pacote RJOSONIO, apresenta as mensagens abaixo:
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:
https://cran.rstudio.com/bin/windows/Rtools/ Installing package into ‘C:/Users/guilh/Documents/R/win-library/4.0’ (as ‘lib’ is unspecified) Warning in install.packages : package ‘RJOSONIO’ is not available for this version of R
A version of this package 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
Segui o passo a passo apresentado no caminho https://cran.rstudio.com/bin/windows/Rtools/, mas o erro persiste
