Following is the error message generated whenever I try to install any packages:
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 ‘shiny’ 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
Warning in install.packages :
unable to access index for repository https://cran.rstudio.com/bin/windows/contrib/4.2: cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/4.2/PACKAGES'
I tried running a pacman package and found it could not be installed. I tried installing tidyverse package individually and it says error. Now R is not able to run since all packages cannot be installed.
Lastly, uninstalled R studio and re install but it is still facing an issue.
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'
Installing package into ‘C:/Users/Syed Ismail/Documents/R/win-library/4.0’
(as ‘lib’ is unspecified)
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 ‘pacman’ 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
Warning in install.packages :
unable to access index for repository https://cran.rstudio.com/bin/windows/contrib/4.0:
cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/4.0/PACKAGES'```
I am trying to install readxl package for R.
The following is the RStudio output:
To learn more and/or disable this warning message see the "Use secure download method for HTTP" option in Tools -> Global Options -> Packages.
> library('readxl')
Error in library("readxl") : there is no package called ‘readxl’
> install.packages("readxl")
Warning in install.packages :
unable to access index for repository http://cran.rstudio.com/src/contrib:
cannot open URL 'http://cran.rstudio.com/src/contrib/PACKAGES'
Installing package into ‘C:/Users/Lenovo/Documents/R/win-library/3.5’
(as ‘lib’ is unspecified)
Warning in install.packages :
unable to access index for repository http://cran.rstudio.com/src/contrib:
cannot open URL 'http://cran.rstudio.com/src/contrib/PACKAGES'
Warning in install.packages :
package ‘readxl’ is not available (for R version 3.5.0)
Warning in install.packages :
unable to access index for repository http://cran.rstudio.com/bin/windows/contrib/3.5:
cannot open URL 'http://cran.rstudio.com/bin/windows/contrib/3.5/PACKAGES'
>
The following is the R's console output:
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
> install.packages("readxl")
Installing package into ‘C:/Users/Lenovo/Documents/R/win-library/3.5’
(as ‘lib’ is unspecified)
--- Please select a CRAN mirror for use in this session ---
Warning: failed to download mirrors file (cannot open URL 'https://cran.r-project.org/CRAN_mirrors.csv'); using local file 'C:/PROGRA~1/R/R-35~1.0/doc/CRAN_mirrors.csv'
Warning: unable to access index for repository https://cloud.r-project.org/src/contrib:
cannot open URL 'https://cloud.r-project.org/src/contrib/PACKAGES'
Warning: unable to access index for repository https://cloud.r-project.org/bin/windows/contrib/3.5:
cannot open URL 'https://cloud.r-project.org/bin/windows/contrib/3.5/PACKAGES'
Warning messages:
1: In download.file(url, destfile = f, quiet = TRUE) :
InternetOpenUrl failed: ''
2: package ‘readxl’ is not available (for R version 3.5.0)
>
How can I solve this issue?
The error messages definitely seem to be telling you, that R cannot connect to download the packages. Here are some thoughts:
Does your user profile have administrative privileges? I am not a huge Windows user, but your are technically trying to add software, which sometimes requires escalated privileges. Maybe trying running R as Admin in windows, for this one issue to see if that is the problem. (Doesn't seem very likely.)
If it is a firewall issue you could try to add an exception to your firewall settings for R and/or Cran repositories.
Have your tried to account for dependent packages? install.packages("readxl", dependencies = TRUE) (This can cause its own bag of issues as well, so consider yourself forewarned.)
Can you download any other packages? As you can access the internet to make stack posts, are asking a fairly entry level question, and the URL's are valid so there may be a configuration issue with your installation of R. If all else fails, you may wish to uninstall/reinstall R on your system (and Maybe R studio while you are at it) as that may help to repair something if it is damaged. Use the file checksums, the are there for a reason.
When I try to install a package like this: install.packages("RGtk2")
I get the following error:
Warning in install.packages :
package ‘RGtk2’ is not available (for R version 3.3.2)
Warning in install.packages :
URL 'https://cran.rstudio.com/bin/macosx/mavericks/contrib/3.3/PACKAGES.gz': status was 'SSL connect error'
Warning in install.packages :
URL 'https://cran.rstudio.com/bin/macosx/mavericks/contrib/3.3/PACKAGES': status was 'SSL connect error'
Warning in install.packages :
unable to access index for repository https://cran.rstudio.com/bin/macosx/mavericks/contrib/3.3:
cannot download all files
How can I disable SSL so that my install goes through? I know that normally this would be bad from a security standpoint, but in this case I'm pretty sure that SSL error happens because there is some corporate proxy server that alters a certificate in some way.
mxnet package is not installing in r (on windows 10) when I follow the steps given in its documentation.
install.packages("drat", repos="https://cran.rstudio.com")
drat:::addRepo("dmlc")
install.packages("mxnet")
It gives the following result
Installing package into ‘C:/Users/Ashish/Documents/R/win-library/3.3’
(as ‘lib’ is unspecified) Warning in install.packages : cannot open
URL 'http://dmlc.github.io/drat/bin/windows/contrib/3.3/PACKAGES.gz':
HTTP status was '404 Not Found' Warning in install.packages : cannot
open URL
'http://dmlc.github.io/drat/bin/windows/contrib/3.3/PACKAGES': HTTP
status was '404 Not Found' Warning in install.packages : unable to
access index for repository
http://dmlc.github.io/drat/bin/windows/contrib/3.3: cannot open URL
'http://dmlc.github.io/drat/bin/windows/contrib/3.3/PACKAGES' Package
which is only available in source form, and may need compilation of
C/C++/Fortran: ‘mxnet’ Do you want to attempt to install these from
sources? y/n: y installing the source package ‘mxnet’
trying URL 'http://dmlc.github.io/drat/src/contrib/mxnet_0.5.tar.gz'
Warning in install.packages : cannot open URL
'http://dmlc.github.io/drat/src/contrib/mxnet_0.5.tar.gz': HTTP status
was '404 Not Found' Error in download.file(url, destfile, method, mode
= "wb", ...) : cannot open URL 'http://dmlc.github.io/drat/src/contrib/mxnet_0.5.tar.gz' Warning in
install.packages : download of package ‘mxnet’ failed
Kindly help me resolve this issue. I'm using R version 3.3.0. Is there any other way of installing it in R?
I was able to install it successfully by first downloading its zip file from the following link
https://github.com/dmlc/drat/tree/gh-pages/bin/windows/contrib/3.2
and then installing it using RStudio.
I hope this answer will help anyone else facing the same problem.
I had the same issue and was able to resolve it by following the instructions on this page and choosing the correct OS, Language and CPU/GPU options:
http://mxnet.io/get_started/install.html
The only thing that worked for me was to download the mxnet.zip file to a folder, (set it as working directory) and type:
install.packages("mxnet.zip", repos=NULL, type="win.binary")
You can try using different repo in repos.
Otherwise you can download the drat package along with dependencies and install manually.
Check if these URLs are accessible from your machine or not.
Following links will be helpful for you:
http://mxnet-bing.readthedocs.io/en/latest/build.html#r-package-installation
https://github.com/dmlc/mxnet/issues/1085
The more up-to-date Installation Guide is currently located here:
http://mxnet.io/get_started/setup.html#installing-mxnet
I found the paragraph about the installation of the R-package on Windows to be very well written.
By the way, the install.packages("mxnet") command installs a very long tool chain, so it might happen that a package is currently not indexed correctly in the dmlc-repo (i.e. because it was just updated to a newer version on CRAN): Error: package <pkgname> is not available for R version 3.3.1 So you might want to install the "offending" package from the CRAN (or download the sourcecode and use something like install.packages(file.choose(), repos = NULL, type = "source")), then continue with another call to install.packages("mxnet").
try these commands to install mxnet package:--
cran <- getOption("repos")
cran["dmlc"] <- "https://s3-us-west-2.amazonaws.com/apache-mxnet/R/CRAN/"
options(repos = cran)
install.packages("mxnet")