R.oo installation warnings?

I got the following warnings when I install R.oo. Are these warnings
normal? Should I reinstall the package as mentioned in the warnings?
How to reinstall? The sessionInfo() is at the end.
install.packages("R.oo", dependencies=T)
Warning in install.packages("R.oo", dependencies = T) :
  argument 'lib' is missing: using '/utility/R'
also installing the dependency ?R.methodsS3?

trying URL 'http://cran.sixsigmaonline.org/src/contrib/R.methodsS3_1.1.0.tar.gz'
Content type 'application/x-gzip' length 16263 bytes (15 Kb)
opened URL
==================================================
downloaded 15 Kb

trying URL 'http://cran.sixsigmaonline.org/src/contrib/R.oo_1.6.6.tar.gz'
Content type 'application/x-gzip' length 361830 bytes (353 Kb)
opened URL
==================================================
downloaded 353 Kb
tools:::.install_packages()
* installing *source* package ?R.methodsS3? ...
** R
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices ...
* DONE (R.methodsS3)
tools:::.install_packages()
* installing *source* package ?R.oo? ...
** R
** inst
** preparing package for lazy loading
R.methodsS3 v1.1.0 (2010-01-02) successfully loaded. See ?R.methodsS3 for help.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function attach to attach.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function detach to detach.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function save to save.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function load to load.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function extend to extend.default, which was
defined in environment R.oo.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function gc to gc.default, which was defined
in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function getMethods to getMethods.default,
which was defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
  Renamed the preexisting function getClasses to getClasses.default,
which was defined in environment base.
Warning in setMethodS3.default("throw", "default", function(...) { :
  Method already existed and was overwritten: throw.default
** help
Warning: package 'R.oo' claims to be built under R version 2.10.0 but
is missing some help files and needs to be re-installed
*** installing help indices
** building package indices ...
* DONE (R.oo)

The downloaded packages are in
	?/tmp/Rtmp6iZyqg/downloaded_packages?
sessionInfo()
R version 2.10.0 (2009-10-26)
x86_64-unknown-linux-gnu

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=C              LC_MESSAGES=en_US.UTF-8
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] tools_2.10.0
Hi,

don't worry about those setGenericS3()/setMethodS3(0 warnings - they
are just informative.

I am aware of that last warning:

Warning: package 'R.oo' claims to be built under R version 2.10.0 but
is missing some help files and needs to be re-installed

but it does not go away when you reinstall.  It is also reported in
all of the CRAN checks, which obviously are built on the correct
version, cf.

  http://cran.r-project.org/web/checks/check_results_R.oo.html

I haven't had time to track down what triggers this warning.

I wouldn't worry about this warning either - R.oo is used in many
downstream packages with tons of CPU hours/testing, and I haven't got
any reports that this would cause a problem.

/Henrik
I got the following warnings when I install R.oo. Are these warnings
normal? Should I reinstall the package as mentioned in the warnings?
How to reinstall? The sessionInfo() is at the end.

install.packages("R.oo", dependencies=T)
Warning in install.packages("R.oo", dependencies = T) :
?argument 'lib' is missing: using '/utility/R'
also installing the dependency ?R.methodsS3?

trying URL 'http://cran.sixsigmaonline.org/src/contrib/R.methodsS3_1.1.0.tar.gz'
Content type 'application/x-gzip' length 16263 bytes (15 Kb)
opened URL
==================================================
downloaded 15 Kb

trying URL 'http://cran.sixsigmaonline.org/src/contrib/R.oo_1.6.6.tar.gz'
Content type 'application/x-gzip' length 361830 bytes (353 Kb)
opened URL
==================================================
downloaded 353 Kb

tools:::.install_packages()
* installing *source* package ?R.methodsS3? ...
** R
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices ...
* DONE (R.methodsS3)
tools:::.install_packages()
* installing *source* package ?R.oo? ...
** R
** inst
** preparing package for lazy loading
R.methodsS3 v1.1.0 (2010-01-02) successfully loaded. See ?R.methodsS3 for help.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function attach to attach.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function detach to detach.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function save to save.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function load to load.default, which was
defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function extend to extend.default, which was
defined in environment R.oo.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function gc to gc.default, which was defined
in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function getMethods to getMethods.default,
which was defined in environment base.
Warning in setGenericS3.default(name, envir = envir, validators = validators) :
?Renamed the preexisting function getClasses to getClasses.default,
which was defined in environment base.
Warning in setMethodS3.default("throw", "default", function(...) { :
?Method already existed and was overwritten: throw.default
** help
Warning: package 'R.oo' claims to be built under R version 2.10.0 but
is missing some help files and needs to be re-installed
*** installing help indices
** building package indices ...
* DONE (R.oo)

The downloaded packages are in
? ? ? ??/tmp/Rtmp6iZyqg/downloaded_packages?

sessionInfo()
R version 2.10.0 (2009-10-26)
x86_64-unknown-linux-gnu

locale:
?[1] LC_CTYPE=en_US.UTF-8 ? ? ? LC_NUMERIC=C
?[3] LC_TIME=en_US.UTF-8 ? ? ? ?LC_COLLATE=en_US.UTF-8
?[5] LC_MONETARY=C ? ? ? ? ? ? ?LC_MESSAGES=en_US.UTF-8
?[7] LC_PAPER=en_US.UTF-8 ? ? ? LC_NAME=C
?[9] LC_ADDRESS=C ? ? ? ? ? ? ? LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats ? ? graphics ?grDevices utils ? ? datasets ?methods ? base

loaded via a namespace (and not attached):
[1] tools_2.10.0

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