Unable to install packages in latest version of RStudio and R Version 3 1 1

Question

I am unable to install packages through  latest version of RStudio and R Version 3 1 1  Kindly help  I got the error as mentioned below   Example  Warning in install packages     InternetOpenUrl failed     Warning in install packages     InternetOpenUrl failed     Warning in install packages     unable to access index for repository http   cran rstudio com bin windows contrib 3 1 Installing package into    C  Users Documents R win-library 3 1     as    lib    is unspecified  Warning in install packages     InternetOpenUrl failed     Warning in install packages     InternetOpenUrl failed     Warning in install packages     unable to access index for repository http   cran rstudio com bin windows contrib 3 1 Warning in install packages     package    reshape    is not available  for R version 3 1 1

User · Answer

Please check the following to be able to install new packages:

1- In Tools -> Global Options -> Packages, uncheck the "Use Internet Explorer library/proxy for HTTP" option,

2- In Tools -> Global Options -> Packages, change the CRAN mirror to "0- Cloud - Rstudio, automatic redirection to servers worldwide"

3- Restart Rstudio.

4- Have fun!

User · Answer

As  Pascal said  it is likely that you encounter problem with the firewall or and proxy issue   As a first step  go through FAQ on the CRAN web page  After that  try to flag R with --internet2   Sometimes it could be useful to check global options in R studio and uncheck  Use Internet Explorer library proxy for HTTP   Tools -  Global Options -  Packages and unchecking the  Use Internet Explorer library proxy for HTTP  option   Hope this helps

User · Answer

Most of the time  cer solution works but if in case its not working then try installing it in base R  NOT in R studio   As R studio runs base R executable in background so new package will be available in R studio as well   my experience in macOS

User · Answer

If you are on Windows  try this    C  Program Files RStudio bin rstudio exe  http proxy http   host port

User · Answer

My solution that worked was to open R studio options and select global miror  the field was empty before  and the error went away

User · Answer

Not 100  certain that you have the same problem  but I found out the hard way that my job blocks each mirror site option that was offered and I was getting errors like this   Installing package into     usr lib64 R library     as    lib    is unspecified  --- Please select a CRAN mirror for use in this session --- Error in download file url  destfile   f  quiet   TRUE       unsupported URL scheme Warning  unable to access index for repository https   rweb crmda ku edu cran src contrib Warning message  package    ggplot2    is not available  for R version 3 2 2    Workaround  I am using CentOS      install packages  package name   dependencies TRUE  repos  http   cran rstudio com      I hope this saves someone hours of frustration

User · Answer

I think this is the  set it and forget it  solution   options repos  http   cran rstudio com      Note that this isn t https  I was on a Linux machine  ssh ing in  If I used https  it didn t work

User · Answer

Based on answers from the community  there appear to be several ways that might solve this   From the official FAQ and support forums and this answer  you may have have a firewall or proxy issue that is blocking RStudio from connecting to the internet    Disable any firewalls Tools - gt  Global Options - gt  Packages and unchecking the  quot Use Internet Explorer library proxy for HTTP quot  option and restart R   1   2   3  Flag R with --internet2 On CentOS it was suggested to try the following  install packages  package name   dependencies TRUE  repos  http   cran rstudio com      Several answers suggest using an alternate mirror   1   2   3     Preferences  gt  General  gt  Default working directory  gt  Browse and switch your mirror from local global  whichever is unchecked    On Windows you can start the application with http proxy http   host port      quot C  Program Files RStudio bin rstudio exe quot  http proxy http   host port    Shut down and restart  Needed after many of the above operations  and suggested standalone

User · Answer

What worked for me    Preferences-General-Default working directory-Browse Switch from global to local mirror   Working on a Mac  10 10 3

[r] Unable to install packages in latest version of RStudio and R Version.3.1.1

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