I am new to Rstudio and when I want to load/install pacman(pacman, psych, party, rio, and tidyverse), I could not load/install rio and tidyverse. Then I try to install them manually but it turns out as
"Error: package or namespace load failed for ‘tidyverse’ in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
there is no package called ‘stringi’"
"Error: package or namespace load failed for ‘rio’ in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
there is no package called ‘stringi’"
Could anyone help?