패키지 등록관련질문

Warning in install.packages : unable to access index for repository https://cran.rstudio.com/src/contrib: cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES' Warning in install.packages : package ‘resahpe2’ is not available (for R version 3.6.0) Warning in install.packages : unable to access index for repository https://cran.rstudio.com/bin/windows/contrib/3.6: cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/3.6/PACKAGES' 이런 문구가 콘솔창에 뜹니다..