The package specifies it. Either because the package author has used some 
feature that is only available in that version, or he did not test it in any 
earlier version. You can contact the maintainer (?maintainer) or try modifying 
the package dependencies and finding out yourself if it is a real problem. Or, 
you could upgrade to the current version of R...
---------------------------------------------------------------------------
Jeff Newmiller                        The     .....       .....  Go Live...
DCN:<[email protected]>        Basics: ##.#.       ##.#.  Live Go...
                                      Live:   OO#.. Dead: OO#..  Playing
Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
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Sent from my phone. Please excuse my brevity.

"François Lefebvre" <[email protected]> wrote:
>Hi, I am unable to install roxygen2 on R<3.0.2. Any idea why?
>
>
>
>> install.packages("roxygen2")
>Installing package into
>�/home/lefebvr3/R/x86_64-unknown-linux-gnu-library/3.0�
>(as �lib� is unspecified)
>Warning message:
>package �roxygen2� is not available (for R version 3.0.1)
>> sessionInfo()
>R version 3.0.1 (2013-05-16)
>Platform: x86_64-unknown-linux-gnu (64-bit)
>
>locale:
> [1] LC_CTYPE=en_CA.UTF-8       LC_NUMERIC=C
> [3] LC_TIME=en_CA.UTF-8        LC_COLLATE=en_CA.UTF-8
> [5] LC_MONETARY=en_CA.UTF-8    LC_MESSAGES=en_CA.UTF-8
> [7] LC_PAPER=C                 LC_NAME=C
> [9] LC_ADDRESS=C               LC_TELEPHONE=C
>[11] LC_MEASUREMENT=en_CA.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_3.0.1
>
>
>
>Thank you.
>
>       [[alternative HTML version deleted]]
>
>
>
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>
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