Hi, If your PC connects Internet via proxy server, you have to run Rgui.exe with option "--Internet2" (i.e. Rgui.exe --Internet2).
If my suggestion doesn't make sense, please ignore. rgds. --- Ryota Kawauchi 2014/10/01 13:39、Sarah Hardy <sarah.ha...@maine.edu> のメッセージ: > Hello, > > I have a student (running Windows 8) who ran into a problem installing the > RcmdrPlugin.IPSUR package and, despite instructions to the contrary, > uninstalled R and reinstalled. He uninstalled it using the Windows 8 > utility. Now he cannot install any packages. > > Here are the error messages he gets when he gets when he trys to use the > menu to install a package: >> utils:::menuInstallPkgs() > --- Please select a CRAN mirror for use in this session --- > Warning: unable to access index for repository > http://cran.mirrors.hoobly.com/bin/windows/contrib/3.1 > Warning: unable to access index for repository > http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/3.1 > Error in install.packages(NULL, .libPaths()[1L], dependencies = NA, type = > type) : > no packages were specified > In addition: Warning message: > In open.connection(con, "r") : > unable to connect to 'cran.r-project.org' on port 80. > > Here are the messages he gets when using the install.packages command (it > doesn't matter what package he tries to install): > >> install.packages("rpart") > Installing package into > ‘C:/Users/michael.bottai/Documents/R/win-library/3.1’ > (as ‘lib’ is unspecified) > Warning: unable to access index for repository > http://cran.mirrors.hoobly.com/bin/windows/contrib/3.1 > Warning: unable to access index for repository > http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/3.1 > Warning message: > package ‘rpart’ is not available (for R version 3.1.1) > > Any help will be greatly appreciated! > > Thank you, > Sarah > > > -- > Sarah Hardy, PhD > Associate Professor of Mathematics > University of Maine Farmington > 207-778-7124 Office: Brinkman 100 > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.