Getting error while installing the packages

[Narayandatta]

Hi, I am trying to install package
install.packages("xlsx")
but getting below error

Error: package 'rJava' could not be loaded
Execution halted
ERROR: lazy loading failed for package 'xlsxjars'

• removing 'C:/Users/AppData/Local/anaconda3/envs/rstudio/lib/R/library/xlsxjars'
  Warning in install.packages :
  installation of package ‘xlsxjars’ had non-zero exit status
  ERROR: dependency 'xlsxjars' is not available for package 'xlsx'
• removing 'C:/Users/AppData/Local/anaconda3/envs/rstudio/lib/R/library/xlsx'
  Warning in install.packages :
  installation of package ‘xlsx’ had non-zero exit status

The downloaded source packages are in
‘C:\Users\AppData\Local\Temp\Rtmp6Zaax1\downloaded_packages’

Even I tried to install 'rjava', 'xlsxjars' packages but not getting installed

[jrkrideau]

Hi, welcome to the forum.

I am not a Windows user but my guess would be that either you do not have Java installed or that you may need to update your version of Java.

[Gabor]

Can you show the actual installation errors? Or the full installation output if you are unsure?

In any case I would try running

R  CMD javareconf

to make sure that Java is installed and R is configured to use it.

[Narayandatta]

Java is updated version is already installed in my system and R is configured to use it

[Gabor]

Can you show the output of

system("R CMD javareconf")

and also the full output of a failed installation?

[Narayandatta]

install.packages("xlsx")

also installing the dependency ‘xlsxjars’

Warning in install.packages :

unable to access index for repository https://cran.rstudio.com/bin/windows/contrib/3.6:

cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/3.6/PACKAGES'

installing the source packages ‘xlsxjars’, ‘xlsx’

trying URL 'https://cran.rstudio.com/src/contrib/xlsxjars_0.6.1.tar.gz'

Content type 'application/x-gzip' length 9477071 bytes (9.0 MB)

downloaded 9.0 MB

trying URL 'https://cran.rstudio.com/src/contrib/xlsx_0.6.5.tar.gz'

Content type 'application/x-gzip' length 489493 bytes (478 KB)

downloaded 478 KB

• installing source package 'xlsxjars' ...

** package 'xlsxjars' successfully unpacked and MD5 sums checked

** using staged installation

** R

** inst

** byte-compile and prepare package for lazy loading

Error: package or namespace load failed for 'rJava':

.onLoad failed in loadNamespace() for 'rJava', details:

call: inDL(x, as.logical(local), as.logical(now), ...)

error: unable to load shared object 'C:/Users/ABC/AppData/Local/anaconda3/envs/rstudio/lib/R/library/rJava/libs/x64/rJava.dll':

LoadLibrary failure: %1 is not a valid Win32 application.

Error: package 'rJava' could not be loaded

Execution halted

ERROR: lazy loading failed for package 'xlsxjars'

• removing 'C:/Users/ABC/AppData/Local/anaconda3/envs/rstudio/lib/R/library/xlsxjars'

Warning in install.packages :

installation of package ‘xlsxjars’ had non-zero exit status

ERROR: dependency 'xlsxjars' is not available for package 'xlsx'

• removing 'C:/Users/ABC/AppData/Local/anaconda3/envs/rstudio/lib/R/library/xlsx'

Warning in install.packages :

installation of package ‘xlsx’ had non-zero exit status

The downloaded source packages are in

‘C:\Users\ABC\AppData\Local\Temp\RtmpKMiMSt\downloaded_packages’

[Gabor]

Can you show the output of this?

system("R CMD javareconf")

[Narayandatta]

output <- system("R CMD javareconf", intern = TRUE)
Warning message:
In system("R CMD javareconf", intern = TRUE) :
running command 'R CMD javareconf' had status 1
cat(output, sep = "\n")
'javareconf' is not recognized as an internal or external command,
operable program or batch file.

[Gabor]

Two more things. You are using R 3.6, which is very old. CRAN has (old) binary packages for it, but at a different repo, so you'd need to use that to get binary packages:

options(repos = c(CRAN = "https://cran-archive.r-project.org/"))

Most importantly, you seem to be using CRAN R with an active conda, and that does not work. You need to either

1. deactivate conda when you are using CRAN R, or
2. install R and all R packages from conda.