I'm attempting to install rJava as to use the package tabulizer. My steps so far has been to rund install.packages("rJava"), run Sys.setenv(JAVA_HOME="C:/Program Files/Java/jdk-15.0.1"), and then run library(rJava). When running the last command I first get a pop-up showing EXTPTR_PTR Entry Point for procedure not found (based on my hopeful translation), and then in console:
Error: package or namespace load failed for ‘rJava’:
.onLoad failed in loadNamespace() for 'rJava', details:
call: NULL
error: .onLoad failed in loadNamespace() for 'rJava', details:
call: inDL(x, as.logical(local), as.logical(now), ...)
error: unable to load shared object 'D:/TidlPic/Eric/Documents/R/win-
library/4.0/rJava/libs/x64/rJava.dll'
I have made sure I have the latest version of both the JRE and JDK versions of Java, and that both them and R are the 64bit versions. I've also attempted at pointing the Java_Home path to either one of them, as well ast just ../Java, and they all return the same error. Any clues on what it is wrong? All help appreciated!
There was accidental breakage introduced by R 4.0.0 or R 4.0.1 which was fixed in R 4.0.2 and R 4.0.3. Are you by chance running 4.0.1? Upgrading would help.
The official word from one R Core member is to not use EXTPTR_PTR (see e.g. this list email). The current CRAN version of rJava should also be fine.
So in short: 'current' rJava with 'current' R should be fine.
Related
While installing qdap I have not faced any errors. But when loading the library, I face the follwing errors.
> library(qdap)
Loading required package: qdapDictionaries
Loading required package: qdapRegex
Loading required package: qdapTools
Loading required package: RColorBrewer
Error: package or namespace load failed for ‘qdap’:
.onLoad failed in loadNamespace() for 'rJava', details:
call: fun(libname, pkgname)
error: JAVA_HOME cannot be determined from the Registry
I read in another question that we need to install the JAVA 64bit (as my Win 10 is 64-bit) and load the JAVA home. So I downloaded the 64-bit java file and also set the JAVA_HOME to the directory.
> Sys.setenv(JAVA_HOME='C:/Program Files (x86)/Java/jre1.8.0_231')
> library(qdap)
Error: package or namespace load failed for ‘qdap’:
.onLoad failed in loadNamespace() for 'rJava', details:
call: inDL(x, as.logical(local), as.logical(now), ...)
error: unable to load shared object 'C:/Users/Admin/Documents/R/win-library/3.6/rJava/libs/x64/rJava.dll':
LoadLibrary failure: %1 is not a valid Win32 application.
I have uninstalled and installed the latest R software (3.6.2; I've checked both 32-bit and 64-bit options), restarted R-studio as well, to no avail.
The issue is fixed. Although I'm not 100% sure what solved, here is what i have done.
The error %1 is not a valid Win32 application. is indicating 32-bit.
So I started Rgui console (32-bit) (opened from the directory C:\Program Files\R\R-3.6.2\bin\i386 ). The library(rJava) command works well and so does library(qdap).
Then I changed the options in Rstudio to choose 32-bit R [Tools -> Options -> General]. But setting this will impact high memory consuming executions. After a while (when I started facing memory issues), I switched the RStudio to use the 64-bit R.
The error did not appear after that and I was able to load the 'qdap' library.
I get this error message while trying to load the rJava or the openNLP packages through the function library(openNLP) or library(rJava):
Error: package or namespace load failed for ‘rJava’:
.onLoad in loadNamespace() for 'rJava' failed, details:
call: dirname(this$RuntimeLib)
error: a character vector argument expected
I have no problems loading other packages, e.g. NLP.
Does somebody know what the problem is?
I have updated the Java SE Development Kit and now I get no error message anymore. So this seems to be the solution for the problem.
I solved this problem by installing Java SE Development Kit 8.
Link for Download: http://www.oracle.com/technetwork/pt/java/javase/downloads/jdk8-downloads-2133151.html
I tried to load the R package xlsx:
library('xlsx')
But I got the following error:
Error : .onLoad failed in loadNamespace() for 'xlsx', details:
call: .jinit()
error: Cannot create Java virtual machine (-1)
In addition: Warning message:
package ‘xlsx’ was built under R version 3.2.3
Error: package or namespace load failed for ‘xlsx’
My R-session aborts when I try .jinit()
Any help is much appreciated.
Edit:
I updated R Studio to the newest version and executed
update.packages(checkBuilt = TRUE)
but still got the following error:
Error : .onLoad failed in loadNamespace() for 'xlsx', details:
call: .jinit()
error: Cannot create Java virtual machine (-1)
Error: package or namespace load failed for ‘xlsx’
Edit 2:
This question is still unsolved.
As Pascal in the comments below suggested I looked for the windows equivalent command of:
R CMD javareconf
After many hours of searching I still didn't found it.
I faced similar problem on Macbook. If you've upgraded Java recently, it is likely that you need to reconfigure.
For me, it got solved with,
step#1 sudo R CMD javareconf (On Windows, sudo not required. If you face "command not found" issue on Windows, try this)
step#2 install.packages("rJava",type='source') (inside R prompt)
Hope this helps!
In case you don't have PATH variable set up properly, try to override it by using
options(java.home="PATH TO jre")
This might fix some issues.
First the tech specs of what I am using:
RStudio 0.98.983
R 3.1.1 (64 Bit)
Windows 8.1
When trying to load XLConnect I receive the following error
Error : .onLoad failed in loadNamespace() for 'rJava', details:
call: fun(libname, pkgname)
error: JAVA_HOME cannot be determined from the Registry
Error: package or namespace load failed for ‘XLConnect’
When trying to load RJava I receive the following error
Error : .onLoad failed in loadNamespace() for 'rJava', details:
call: fun(libname, pkgname)
error: JAVA_HOME cannot be determined from the Registry
Error: package or namespace load failed for ‘rJava’
I've checked to make sure the newest updates are installed from CRAN. However I am out of ideas and new to R. Does anyone know how to fix this?
Here is what I posted before:
Meanwhile, I am right now having the problem with the relenium package, which can't locate rJava.
Version mismatches can bedevil you. Check that if your version of R is 32 byte, so must your Java version be. Or, 64 byte must match 64 byte.
Second, I ended up adding to my PATH (I am on Windows 8) the location of the jv.dll file that XLConnect needs (I think that was the name of the file). I found the PATH through Control Panel and System Environment (and maybe more).
Third, the Java site will verify that you have Java installed.
Fourth, with the matching architecture and the PATH pointing to the needed .dll file, I rebooted and it all worked.
Good luck.
I had some issues installing rJava first. Then I found this solution.
Unfortunately I get following error, when loading the package:
Error : .onLoad failed in loadNamespace() for 'rJava', details:
call: dyn.load(file, DLLpath = DLLpath, ...)
error: unable to load shared object '/informatik2/students/home/1jendryc/R/x86_64-pc-linux-gnu-library/3.1/rJava/libs/rJava.so':
libjvm.so: cannot open shared object file: No such file or directory
Error: package or namespace load failed for ‘rJava’
Still this file exists and even the path is correct
~/R/x86_64-pc-linux-gnu-library/3.1/rJava/libs$ ls
rJava.so
So I tried that approach, but it didn't worked.
I have no possibility to get root easily, cause I am working at my university at a pool computer.
Cheers.
Your issue is something different. What message says is that it can't find "libjvm.so". You need to properly configure Java, rJava and R. Take a look here
http://www.owsiak.org/?p=3671
where all the caveats are listed when it comes to working with R and Java.