[R] xts zoo "cannot remove prior installation of package"

[Pooya Lalehzari]

Thank you for your help.
It seems like there was an issue with the libPath. The path is setup to reference a cached copy of a shared drive and somehow the cache and the shared drive were not synching. I finally located the real place (i.e. the cached area) where R was looking and manually removed everything.

Thanks again,
Pooya.


-----Original Message-----
From: David Winsemius [mailto:dwinsemius at comcast.net] 
Sent: Monday, July 08, 2013 4:26 PM
To: Pooya Lalehzari
Cc: r-help at r-project.org
Subject: Re: [R] xts zoo "cannot remove prior installation of package"


On Jul 8, 2013, at 10:21 AM, Pooya Lalehzari wrote:

> Hello,
> Some how, my xts/zoo package ran into trouble. I tried to re-install the packages, I get an error that it cannot remove the prior installation.
> I uninstalled R and the deleted all the libraries and reinstalled everything fresh. It still complains the same thing. I try to remove.packages("zoo"), it tells me there is no such package. I am really baffled. Does anyone know how to fix this problem?

If you look at the help page for remove.packages(), it states that the second argument is taken to be the first element in .libPaths(). You have not told us what .libPaths() is returning and you should do so (even though it wasn't mentioned in the Posting Guide.)  It seems possible that you set up an additonal library location which your new installation of R is "finding" but which is not the first item in the list of directories with library entries. 

I have found that having two locations for libraries is an annoyance, and have removed all "user library" locations.

> 	[[alternative HTML version deleted]]

> R-help at r-project.org mailing list
> 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.

Let me second Prof. Ripley's suggestion that you do more reading of the /listinfo/ page and the  Posting Guide.

-- 

David Winsemius
Alameda, CA, USA

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