[R] Warning in install.packages : converting NULL pointer to R NULL

[Rui Barradas]

Hello,

Thanks for the info.
It was an update issue, I updated to Ubuntu 20.04 and R to 4.0.0 but not 
RStudio. Now that I have all three most recent versions it works as 
before, with no strange warning message.
So I guess this thread is closed.

Thanks to all,

Rui Barradas

Às 23:11 de 08/05/20, Rolf Turner escreveu:
> 
> Hi Rui.  Doesn't happen to me under Ubuntu 18.04:
> 
>> install.packages('cowplot',lib=.Rlib) trying URL 
>> 'https://cloud.r-project.org/src/contrib
>> /cowplot_1.0.0.tar.gz'
>> Content type 'application/x-gzip' length 1275585 bytes (1.2 MB)
>> ==================================================
>> downloaded 1.2 MB
>>
>> * installing *source* package ‘cowplot’ ...
>> ** package ‘cowplot’ successfully unpacked and MD5 sums checked
>> ** using staged installation
>> ** R
>> ** inst
>> ** byte-compile and prepare package for lazy loading
>> ** help
>> *** installing help indices
>> *** copying figures
>> ** building package indices
>> ** installing vignettes
>> ** testing if installed package can be loaded from temporary location
>> ** testing if installed package can be loaded from final location
>> ** testing if installed package keeps a record of temporary 
>> installation path
>> * DONE (cowplot)
>>
>> The downloaded source packages are in
>>     ‘/tmp/RtmpG8wb97/downloaded_packages’
> 
> My session info is as follows:
> 
>> sessionInfo()
>> R version 4.0.0 (2020-04-24)
>> Platform: x86_64-pc-linux-gnu (64-bit)
>> Running under: Ubuntu 18.04.4 LTS
>>
>> Matrix products: default
>> BLAS:   /usr/lib/x86_64-linux-gnu/atlas/libblas.so.3.10.3
>> LAPACK: /usr/lib/x86_64-linux-gnu/atlas/liblapack.so.3.10.3
>>
>> Random number generation:
>>  RNG:     Mersenne-Twister  Normal:  Inversion  Sample:  Rounding
>> locale:
>>  [1] LC_CTYPE=en_GB.UTF-8       LC_NUMERIC=C  [3] 
>> LC_TIME=en_NZ.UTF-8        LC_COLLATE=en_GB.UTF-8  [5] 
>> LC_MONETARY=en_NZ.UTF-8    LC_MESSAGES=en_GB.UTF-8  [7] 
>> LC_PAPER=en_NZ.UTF-8       LC_NAME=C  [9] LC_ADDRESS=C               
>> LC_TELEPHONE=C [11] LC_MEASUREMENT=en_NZ.UTF-8 LC_IDENTIFICATION=C
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>> other attached packages:
>> [1] brev_0.0-4
>>
>> loaded via a namespace (and not attached):
>> [1] compiler_4.0.0 tools_4.0.0 
> 
> No idea what to suggest.  Sorry.
> 
> cheers,
> 
> Rolf
>