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Like a bunch of people, I am having trouble getting rJava to load in RStudio -- the same problem also reproduces itself when using the R GUI directly.

Here's the error:

> require(rJava) Loading required package: rJava Error: package or namespace load failed for ‘rJava’: .onLoad failed in loadNamespace() for 'rJava', details: call: dyn.load(file, DLLpath = DLLpath, ...) error: unable to load shared object '/Library/Frameworks/R.framework/Versions/3.4/Resources/library/rJava/libs/rJava.so': dlopen(/Library/Frameworks/R.framework/Versions/3.4/Resources/library/rJava/libs/rJava.so, 6): Library not loaded: @rpath/libjvm.dylib Referenced from: /Library/Frameworks/R.framework/Versions/3.4/Resources/library/rJava/libs/rJava.so Reason: image not found

I have tried a number of things, including reconfiguring from the command line:

sudo R CMD javareconf -n Java interpreter : /usr/bin/java Java version : 1.8.0_144 Java home path : /Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre Java compiler : /usr/bin/javac Java headers gen.: /usr/bin/javah Java archive tool: /usr/bin/jar Non-system Java on macOS trying to compile and link a JNI program detected JNI cpp flags : -I$(JAVA_HOME)/../include -I$(JAVA_HOME)/../include/darwin detected JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm clang -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG -I/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/../include -I/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/../include/darwin -I/usr/local/include -fPIC -Wall -g -O2 -c conftest.c -o conftest.o clang -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/Library/Frameworks/R.framework/Resources/lib -L/usr/local/lib -o conftest.so conftest.o -L/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/server -ljvm -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation JAVA_HOME : /Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre Java library path: $(JAVA_HOME)/lib/server JNI cpp flags : -I$(JAVA_HOME)/../include -I$(JAVA_HOME)/../include/darwin JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm

When I check options("java.home") it was set to NULL, so I set it to the following:

> options("java.home"="/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre")

I also reinstalled Java SE Development Kit 8 and then resintalled rJava.

Regardless, I continue to get the same error.

Here is my session info:

> sessionInfo() R version 3.4.1 (2017-06-30) Platform: x86_64-apple-darwin15.6.0 (64-bit) Running under: OS X El Capitan 10.11.6 Matrix products: default BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib LAPACK: /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libRlapack.dylib locale: [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] colorspace_1.3-2 scales_0.5.0 compiler_3.4.1 lazyeval_0.2.0 [5] plyr_1.8.4 tools_3.4.1 gtable_0.2.0 tibble_1.3.4 [9] Rcpp_0.12.12 ggplot2_2.2.1 grid_3.4.1 rlang_0.1.2 [13] munsell_0.4.3

Any thoughts would be appreciated.

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4 Answers 4

Reset to default
5

I had a similar issue. Quickest solution was to manually load the dylib.

dyn.load('/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/server/libjvm.dylib') require(rJava)

If the above solution works, a long term solution exists by adding this command to the terminal.

sudo ln -f -s $(/usr/libexec/java_home)/jre/lib/server/libjvm.dylib /usr/local/lib

Found this solution here. You will no longer need to manually load the dylib each time.

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1 Comment

on my system, with a more recent version of java, the path is different, so the command is dyn.load('/Library/Java/JavaVirtualMachines/jdk-9.0.4.jdk/Contents/Home/lib/server/libjvm.dylib')
1

When re-installing java on a Mac OX system, you need to close all your r sessions and then to use the system command line R CMD javareconf

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Thanks, I tried this and it does not fix the problem
0

This is something that took me quite lot of time to solve in mac OS.

You can try these:

R 3.4, rJava, macOS and even more mess ;) and this one R, Java, rJava and macOS adventures

You can find quite detailed instructions there. However, note that some people face system specific issues following these instructions :(

And it's hardly possible to find solution that solves all the issues people find.

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0

For me this instruction did it:

https://cimentadaj.github.io/blog/2018-05-25-installing-rjava-on-windows-10/installing-rjava-on-windows-10/

if you have installed Java before try to deinstall and reinstall it like:

Windows 10 - Uninstall Programs

  1. Click Start.
  2. Select Settings.
  3. Select System.
  4. Select Apps & features.
  5. Select the program to uninstall and then click its Uninstall button.
  6. Respond to the prompts to complete the uninstall.
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