Please help a new user with installation problems

[Charles Brauer]

Hello,

I'm trying to install xlsx on a Windows 8.1 (x64) machine.

My Java version is jre1.8.0_25

My RStudio version is Version 0.98.1091 – © 2009-2014 RStudio, Inc.

My attempt to install xlsx is as follows:

  > install.packages('xlsx')

  Installing package into ‘C:/Users/Charles/Documents/R/win-library/3.1’

  (as ‘lib’ is unspecified)

  trying URL 'http://cran.rstudio.com/bin/windows/contrib/3.1/xlsx_0.5.7.zip'

  Content type 'application/zip' length 400568 bytes (391 Kb)

  opened URL

  downloaded 391 Kb

  Warning in install.packages : downloaded length 400568 != reported length 400568

  package ‘xlsx’ successfully unpacked and MD5 sums checked

  The downloaded binary packages are in

C:\Users\Charles\AppData\Local\Temp\RtmpaegMEa\downloaded_packages

My attempt to install rJava  is as follows:

  > install.packages('rJava')

  Installing package into ‘C:/Users/Charles/Documents/R/win-library/3.1’

  (as ‘lib’ is unspecified)

  trying URL 'http://cran.rstudio.com/bin/windows/contrib/3.1/rJava_0.9-6.zip'

  Content type 'application/zip' length 758898 bytes (741 Kb)

  opened URL

  downloaded 741 Kb

  package ‘rJava’ successfully unpacked and MD5 sums checked

  The downloaded binary packages are in

C:\Users\Charles\AppData\Local\Temp\RtmpaegMEa\downloaded_packages

>

Now, when I enter:

  > require(xlsx)

  Loading required package: xlsx

  Loading required package: rJava

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

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

  error: unable to load shared object 'C:/Users/Charles/Documents/R/win-  library/3.1/rJava/libs/x64/rJava.dll':

  LoadLibrary failure:  The specified module could not be found.

  Failed with error:  ‘package ‘rJava’ could not be loaded’

>

and when I try:

  > res <- read.xlsx("C:/sm/Trending/Hypothesize/BottleRocketGapdata.xlsx", 1)  # read first sheet

  Error: could not find function "read.xlsx"

  >

I'm a new at this so any help will be greatly appreciated.

Charles

[Adrian Dragulescu]

Charles, 

It seems that you did not install properly the rJava package.   Try something like this.  If you get an error, you need to figure out how to install the rJava package.  

> library(rJava)

> .jinit()

> .jcall("java/lang/System","S","getProperty","os.name")

[1] "Linux"

> 

If you still have issues even after you install rJava correctly, I'll try to help, although installation issues are user specific and hard to replicate. 

Best, 

Adrian

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[abah...@gmail.com]

Hi!
My name is Kokou.
I'm also experiencing the same problem while installing the package xlsx, especially with rJava.
When i write library(rJava), this message appear:

Error : .onLoad a échoué dans loadNamespace() pour 'rJava', détails :
  appel : fun(libname, pkgname)
  erreur : No CurrentVersion entry in Software/JavaSoft registry! Try re-installing Java and make sure R and Java have matching architectures.
In addition: Warning message:
le package ‘rJava’ a été compilé avec la version R 3.0.2 
Error: le chargement du package ou de l'espace de noms a échoué pour ‘rJava’

When i try after read.xlsx, they say

Error: could not find function "read.xlsx"

I don't know if depends on the version of R i use. I've tried all kind of version (R-2.14.2, R-2.11.1, R-2.15.1, R-3.2.2, R-3.0.0, R-3.0.3) but nothing. It's the same error.
Please help me for it's important for me. I'm using Window

Regards!