[R] Difficulty Installing Packages

[Jeff Newmiller]

I think that this response should be added to R for Windows FAQ 3.5.
-- 
Sent from my phone. Please excuse my brevity.

On August 26, 2017 11:45:55 PM PDT, Uwe Ligges <ligges at statistik.tu-dortmund.de> wrote:
>On Windows, if you load a dll, this is locked.
>Hence, for package installations, close all R instances, start one 
>without loading packages and then update packages.
>
>Best,
>Uwe Ligges
>
>
>
>
>On 26.08.2017 15:18, Bill Denney wrote:
>> Hi,
>> 
>>   
>> 
>> When installing packages in Windows (currently using Windows 10 with
>all
>> service packs), occasionally, I get a warning similar to the
>following:
>> 
>>   
>> 
>> package 'Rcpp' successfully unpacked and MD5 sums checked
>> 
>> Warning in install.packages :
>> 
>>    unable to move temporary installation 'C:\Users\William
>> Denney\Documents\R\win-library\3.4\file32701900456\Rcpp' to
>> 'C:\Users\William Denney\Documents\R\win-library\3.4\Rcpp'
>> 
>>   
>> 
>> This can occur when installing many packages where the package that
>could
>> not be moved (e.g. Rcpp) is a dependency.  In the end, the package
>where the
>> warning is issued is not available to load, and I have to spend time
>> figuring out why.  The usual reason is that for some reason during
>the
>> package install process the library directory ("C:\Users\William
>> Denney\Documents\R\win-library\3.4\") has been set to partially or
>fully
>> read-only.
>> 
>>   
>> 
>> I have a couple of questions:
>> 
>>   
>> 
>> *	Why is the directory set to read-only?  It happens almost every
>time
>> that I install packages that are compiled.  (It doesn't seem to occur
>with
>> interpreted-only packages.)
>> *	Shouldn't that warning be an error or at least prevent the packages
>> that depend on the one that couldn't be moved from being installed? 
>The way
>> that it tends to go, package installation completes with that
>warning, and
>> then I have to clean up the mess of missing dependencies.
>> 
>>   
>> 
>> Thanks,
>> 
>>   
>> 
>> Bill
>> 
>> 
>> 	[[alternative HTML version deleted]]
>> 
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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 at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>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.