[R-pkg-devel] Working with R-devel

Uwe Ligges ligges at statistik.tu-dortmund.de
Wed Jan 24 11:23:50 CET 2018

On 24.01.2018 03:20, Dirk Eddelbuettel wrote:
> I am going in circles here and have lost my way. I used to have means to
> build R-devel (still do) and use it for local testing (no longer do).
>   - Fresh build of R-devel
>   - One entry in .libPaths()
>   - I can install Rcpp, it ends up in that .libPaths()
>   - I can load
>   - With the _exact same settings_ starting R as R CMD check ... I fail on
>     ** preparing package for lazy loading
>     Error : package ‘Rcpp’ was installed by an R version with different internals; \
>     it needs to be reinstalled for use with this R version

I guess you actually pick up anotehr version of R.
Carefully check what is on your PATH and perhaps some Renviron files 
that may be around?


> which is both false (see above) and irritating.
> Does anybody have any tips, working guidelines or interpretations of the ever
> changing manuals (which charmingly never document what changes) ?
> Dirk

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