Is R not loading the packages at all (like they were never installed), or perhaps it is complaining that they were build on the older version of R? You have to be more specific here about what happens etc.

For now try running update.packages and see if it fixes the problem.

I would also suggest keeping all the additional packages (beyond R base installation) in the separate library tree -- less work every time you update R. See ?library and ?.libPaths


hth,

Michal

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____________________________________
Michal Bojanowski
ICS / Department of Sociology
Utrecht University
Heidelberglaan 2; 3584 CS Utrecht
Room 1428
m.j.bojanowski at uu dot nl
http://www.fss.uu.nl/soc/bojanowski/



-----Wiadomość oryginalna-----
Od: r-help-bounces@stat.math.ethz.ch w imieniu Raghu Naik
Wysłano: So 2007-06-02 23:13
Do: r-help@stat.math.ethz.ch
Temat: [R] Updating R version

A quick question.  I am trying to understand how I could move the installed
packages in my R 2.3 version to the newly installed R 2.5 version, without
having to install all the packages again. I copied the files under the old
library subdirectory to the new library subdirectory. But still the newer
version is not recognizing the packages that were copied over.

Thanks.

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