Newer version of R does not load older packages

Question

I have some issues with regard to package VIMGUI. As I am trying to use it, the warning comes like this:

Loading required package: data.table
Error in load Namespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : 
  there is no package called ‘stringi’
In addition: Warning messages:
1: package ‘VIM’ was built under R version 3.1.2 
2: package ‘data.table’ was built under R version 3.1.1 
Error: package ‘data.table’ could not be loaded

When I try to install data.table the error comes like this:

package ‘data.table’ is not available (for R version 3.1.0)

Since you are likely not using a personal library for packages, *after you update R*, you can either move all packages over to the new *R* directory and do `update.packages(checkBuilt=TRUE, ask=FALSE)` or perhaps try [this suggestion](http://www.schulte-mecklenbeck.com/2011/04/resinstalling-packages-in-r-after-update/). — r2evans, May 11 '15 at 17:20
What do you mean by "almost all packages updated"? What version of *R* is installed? What is your OS? Perhaps you could edit your question and include the output from `sessionInfo()`. — r2evans, May 11 '15 at 17:21
Yeah, you say your errors are saying "for R version 3.1.0", suggesting that you're running a year-old version of R. 3.2.0 was released a couple weeks ago. — Gregor Thomas, May 11 '15 at 17:22
I am using R version 3.1.0 (2014-04-10) -- "Spring Dance" Copyright (C) 2014 The R Foundation for Statistical Computing — imran khan, May 11 '15 at 17:26
After clicking update, it says you are using newest version of R — imran khan, May 11 '15 at 18:15
You likely (still) need to run `update.packages(checkBuilt=TRUE, ask=FALSE)` as I suggested earlier, especially after updating *R*. After that, you can try to install the packages again (no harm is done by installing again). After all of that, if you are still having problems, you need to provide [more information](http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example). — r2evans, May 11 '15 at 19:48

IRTFM · Answer 1 · 2015-05-11T20:49:34.090

If you are being told that R 3.1.0 is up-to-date then you are using a mirror that is a year behind the current version, which you've already been advised is 3.2.0. Furthermore the current version of pkg:data.table is 1.9.5 from github and it says it only requires "R >= 2.14.0" so why a mirror would give you that error is a complete mystery. Updates of R within minor versions (from 3.1.0 to 3.1.2 or 3.1.3 for instance) are generally painless and let you avoid the gentle warnings (notice: not an error) such as you see such as "package ‘VIM’ was built under R version 3.1.2".

I'm also not seeing why data.table would need VIM or stringi for that matter. Those packages are not in either the Improts or the Depends listing for 'data.table'. So I'm guessing there is a bunch of other code you have not provided that made the failed attempt at loading the data.table-package.

Update to 3.1.3 (obtained from a more complete CRAN mirror than you appear to be using.) Then post the output of sessionInfo() and maybe the output of

(mypacks <- installed.packages()[ , 1:3])

That would tell you what versions are currently in your library and whether you have multiple libraries. I wouldn't want to post that because for me

 > nrow(mypacks)
 [1] 1333

But for someone with only a few packages installed, it will give you a complete listing of your current versions and where they are on your drives. You could also post:

mypacks[ mypacks[, 'Package']  %in% c('data.table', 'stringi', 'VIM') , ]
### Output from my setup:
           Package     
data.table "data.table"
stringi    "stringi"   
VIM        "VIM"       
           LibPath                                                         
data.table "/Library/Frameworks/R.framework/Versions/3.1/Resources/library"
stringi    "/Library/Frameworks/R.framework/Versions/3.1/Resources/library"
VIM        "/Library/Frameworks/R.framework/Versions/3.1/Resources/library"
           Version
data.table "1.9.5"
stringi    "0.4-1"
VIM        "4.0.0"

Thank you All..i was actually updating throughout year only RStudio and not R......It sometimes confuses that R and R Studio is same....but i hope now sorted the issue was able to run VIMGUI....I copied all pakages from 3.1.0 folder and pasted in 3.2.0......Although packages are working well but some show errors....did i do right — imran khan, May 12 '15 at 07:05

Newer version of R does not load older packages

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