Package installation "tabulizer" error in R

Question

I’m trying to install the package tabulizer in R and I’m not getting it. I also tried downloading directly from CRAN, but it also didn’t work. I also tried installing the tabulizerjars separately but also failed to succeed.

========================================================
> sessionInfo()
R version 3.4.4 (2018-03-15)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.2 LTS

Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.7.1
LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.7.1

locale:
 [1] LC_CTYPE=pt_BR.UTF-8       LC_NUMERIC=C               LC_TIME=pt_BR.UTF-8       
 [4] LC_COLLATE=pt_BR.UTF-8     LC_MONETARY=pt_BR.UTF-8    LC_MESSAGES=pt_BR.UTF-8   
 [7] LC_PAPER=pt_BR.UTF-8       LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=pt_BR.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] devtools_2.1.0 usethis_1.5.1 

=======================================================================
> # Instala pacote extrai tabela de pdf
> install.packages("tabulizer", dependencies = TRUE)
Installing package into ‘/home/jairo/R/x86_64-pc-linux-gnu-library/3.4’
(as ‘lib’ is unspecified)
also installing the dependency ‘tabulizerjars’

tentando a URL 'https://cloud.r-project.org/src/contrib/tabulizerjars_1.0.1.tar.gz'
Content type 'application/x-gzip' length 10902674 bytes (10.4 MB)
==================================================
downloaded 10.4 MB

tentando a URL 'https://cloud.r-project.org/src/contrib/tabulizer_0.2.2.tar.gz'
Content type 'application/x-gzip' length 1047758 bytes (1023 KB)
==================================================
downloaded 1023 KB

* installing source package ‘tabulizerjars’ ...
** package ‘tabulizerjars’ successfully unpacked and MD5 sums checked
** R
** inst
** preparing package for lazy loading
** help
* installing help indices
** building package indices
** testing if installed package can be loaded
Error: package or namespace load failed for ‘tabulizerjars’:
 .onLoad failed in loadNamespace() for 'tabulizerjars', details:
  call: NULL
  error: .onLoad failed in loadNamespace() for 'rJava', details:
  call: dyn.load(file, DLLpath = DLLpath, ...)
  error: impossível carregar objeto compartilhado '/usr/lib/R/site-library/rJava/libs/rJava.so':
  libjvm.so: não é possível abrir arquivo compartilhado: Arquivo ou diretório inexistente
Erro: loading failed
Execução interrompida
ERROR: loading failed
* removing ‘/home/jairo/R/x86_64-pc-linux-gnu-library/3.4/tabulizerjars’
Warning in install.packages :
  installation of package ‘tabulizerjars’ had non-zero exit status
ERROR: dependency ‘tabulizerjars’ is not available for package ‘tabulizer’
* removing ‘/home/jairo/R/x86_64-pc-linux-gnu-library/3.4/tabulizer’
Warning in install.packages :
  installation of package ‘tabulizer’ had non-zero exit status

The downloaded source packages are in
    ‘/tmp/RtmpSzF9Hj/downloaded_packages’    

Answer 1

I had a little episode to install this package on my computer. First I updated my java. Then I had to install the package rJava. To install the tabulizer I went straight to R, without using the IDE (I use Rstudio) and initialized as administrator. Only then I used the install.packages("tabulizer", dependencies = TRUE).

I do not know exactly how it would be in your case, because you use an operating system different from mine, but I left the step by step of what I did, because it can serve as guidance for you adapt to your situation.