[R] Error Downloading Matrix Package

[Uwe Ligges]

Doran, Harold wrote:
> I'm trying to update my Matrix package given the update last night. But
> the following error is generated. I've tried restarting R and deleting
> my old Matrix package. Can anyone suggest how this might be resolved? 

Do you have write permission on the library into which you are trying to 
install package Matrix? In particular, have you really deleted the 
package from the right library?
Do you have the package loaded (R should tell it, hence I do not believe 
this is the problem)? If this is a library used by multiple users, does 
any of those users have the package loaded?

Uwe Ligges


> 
>>install.packages('Matrix')
> 
> trying URL
> 'http://www.ibiblio.org/pub/languages/R/CRAN/bin/windows/contrib/2.1/Mat
> rix_0.98-1.zip'
> Content type 'application/zip' length 891288 bytes
> opened URL
> downloaded 870Kb
> 
> package 'Matrix' successfully unpacked and MD5 sums checked
> Error: cannot remove prior installation of package 'Matrix'
> 
> 
> 
>>traceback()
> 
> 4: stop(sprintf(gettext("cannot remove prior installation of package
> '%s'"), 
>        curPkg), domain = NA, call. = FALSE)
> 3: unpackPkg(foundpkgs[okp, 2], foundpkgs[okp, 1], lib, installWithVers)
> 2: .install.winbinary(pkgs = pkgs, lib = lib, contriburl = contriburl, 
>        method = method, available = available, destdir = destdir, 
>        installWithVers = installWithVers, dependencies = dependencies)
> 1: install.packages("Matrix")
> 
> 
> This is on a Windows XP machine for R 2.11
> 
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