无法在R 3.4.2和MacOS Sierra 10.12.6中加载rJava [英] rJava doesn't load in R 3.4.2 and MacOS Sierra 10.12.6

问题描述

这是我得到的错误:

> library(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

我认为这绝不是一个唯一的问题..我已经尝试过解决方案此处和<请在href ="https://stackoverflow.com/questions/44081227/trouble-installing-and-loading-rjava-on-mac-el-capitan">此处.没有成功.

I see this is by no means a unique problem.. I've tried the solutions here, here and here. No success.

更多详细信息:我正在使用R GUI，但是我也无法通过R终端加载rJava.我在R 3.3.s上的rJava也没有任何问题

Some more details: I'm using R GUI, but I also can't load rJava through R terminal. I also didn't have any issue with rJava on R 3.3.s

推荐答案

JAVA_HOME路径对于不同版本的MAC OS是不同的. 在某些情况下，存在/jre文件夹，并且在某些情况下，不是在/Home控制器在终端中使用CD命令手动转到/server文件夹并使用pwd复制整个路径后，使用该路径设置java.home，则可以轻松加载rJava库.这就是我能够解决此问题的方式

JAVA_HOME path is different for different version of MAC OS. In some cases there is /jre folder and in some cases it is not after /Home director manually go towards /server folder with CD command in terminal and using pwd copy the entire path use that to set the java.home then you can easily load rJava library. This is how I was able to fix the issue

options("java.home"="/Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/lib")

Sys.setenv(LD_LIBRARY_PATH='$JAVA_HOME/server')

dyn.load('/Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/lib/server/libjvm.dylib')

library(rJava)

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