[R] Namespace problem with pre-R 3.0.0 package

Marc Schwartz marc_schwartz at me.com
Thu Mar 3 15:02:36 CET 2016

> On Mar 3, 2016, at 7:40 AM, Sebastien Moretti <sebastien.moretti at unil.ch> wrote:
> Hi
> I have issues with an R package developed in 2004.
> It works perfectly in R < 3.
> It can be installed in R > 3 but functions are not in the namespace.
> Do you know a good - and simple - documentation to help me to solve that?
> I have already fixed some problems with R CMD check but remaining ones are less trivial.
> Regards
> --
> Sébastien Moretti


First, this is really more of a question for R-package-devel:


not R-Help. :-)

Starting with R 3.0.0 (April of 2013), NAMESPACE files for packages were mandatory, whereas before that, they were optional. That is the primary issue.

If the original package author/maintainer has ceased to update the package, thus not available to assist, the primary documentation that you would need is in the R-Exts manual, specifically:


Depending upon the residual errors that you are getting, if you can provide additional details so that folks can provide better assistance, subscribe to and post to R-package-devel for further discussion.


Marc Schwartz

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