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

[Rui Barradas]

Hello,

You are right,

Rscript -e 'install.packages("car")'

doesn't give that message, I will ask RStudio support.
And sorry to spam the list with something I should have checked, I'm so 
used to working in GUI 's that I forgot about the command line.

Thanks,

Rui Barradas

Às 13:56 de 08/05/20, Duncan Murdoch escreveu:
> That looks like an RStudio message.  Do you get it if you run 
> install.packages() in command line R?
> 
> Duncan Murdoch
> 
> On 08/05/2020 8:07 a.m., Rui Barradas wrote:
>> Hello,
>>
>> R 4.0.0 on Ubuntu 20.04, sessionInfo() below.
>>
>> Since I updated to R 4.0 that every time I try to install a package with
>> install.packages() the warning in the title shows up at the end, be the
>> installation successful or not. If it is successful, the package loads
>> with no problems, so I'm not very worried but it isn't normal (expected)
>> behavior, is it?
>>
>> Here is a run of install.packages().
>>
>>
>> install.packages('cowplot')
>> Installing package into ‘/usr/local/lib/R/site-library’
>> (as ‘lib’ is unspecified)
>> 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/Rtmp9NXQkt/downloaded_packages’
>> Warning in install.packages :
>>     converting NULL pointer to R NULL
>>
>>
>> Also, I'm running this on RStudio and haven't changed the R library
>> directory.
>>
>>
>> sessionInfo()
>> R version 4.0.0 (2020-04-24)
>> Platform: x86_64-pc-linux-gnu (64-bit)
>> Running under: Ubuntu 20.04 LTS
>>
>> Matrix products: default
>> BLAS:   /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.9.0
>> LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.9.0
>>
>> locale:
>>    [1] LC_CTYPE=pt_PT.UTF-8       LC_NUMERIC=C
>> LC_TIME=pt_PT.UTF-8
>>    [4] LC_COLLATE=pt_PT.UTF-8     LC_MONETARY=pt_PT.UTF-8
>> LC_MESSAGES=pt_PT.UTF-8
>>    [7] LC_PAPER=pt_PT.UTF-8       LC_NAME=C                  LC_ADDRESS=C
>>
>> [10] LC_TELEPHONE=C             LC_MEASUREMENT=pt_PT.UTF-8
>> LC_IDENTIFICATION=C
>>
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>> other attached packages:
>> [1] MASS_7.3-51.6  ggthemes_4.2.0 ggrepel_0.8.2  dplyr_0.8.5
>> ggplot2_3.3.0
>>
>> loaded via a namespace (and not attached):
>>    [1] zoo_1.8-8          tidyselect_1.0.0   purrr_0.3.4
>> reshape2_1.4.4     haven_2.2.0
>>    [6] lattice_0.20-41    sodium_1.1         carData_3.0-3
>> colorspace_1.4-1   vctrs_0.2.4
>> [11] yaml_2.2.1         rlang_0.4.6        pillar_1.4.3
>> withr_2.2.0        foreign_0.8-79
>> [16] glue_1.4.0         readxl_1.3.1       lifecycle_0.2.0    plyr_1.8.6
>>           stringr_1.4.0
>> [21] MatrixModels_0.4-1 munsell_0.5.0      gtable_0.3.0
>> cellranger_1.1.0   zip_2.0.4
>> [26] rio_0.5.16         forcats_0.5.0      SparseM_1.78
>> quantreg_5.55      curl_4.3
>> [31] tis_1.38           Rcpp_1.0.4.6       readr_1.3.1
>> scales_1.1.0       abind_1.4-5
>> [36] farver_2.0.3       sos_2.0-0          brew_1.0-6
>> digest_0.6.25      hms_0.5.3
>> [41] png_0.1-7          stringi_1.4.6      openxlsx_4.1.4     grid_4.0.0
>>           tools_4.0.0
>> [46] magrittr_1.5       tibble_3.0.1       pacman_0.5.1
>> crayon_1.3.4       car_3.0-7
>> [51] pkgconfig_2.0.3    ellipsis_0.3.0     Matrix_1.2-18
>> data.table_1.12.8  assertthat_0.2.1
>> [56] httr_1.4.1         rstudioapi_0.11    R6_2.4.1
>> compiler_4.0.0
>>
>>
>> Thanks in advance,
>>
>> Rui Barradas
>>
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>