java 加载rJava包时java路径错误
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Error of java path on loading rJava package
提问by Aman Mathur
I am trying to load 'rJava' package in my Unix machine. Before loading I have set the path using
我正在尝试在我的 Unix 机器中加载“rJava”包。在加载之前我已经使用设置了路径
Sys.setenv("JAVA_HOME= myfilepath")
in my R script.
在我的 R 脚本中。
Despite this I am getting the following error (Below is the part of the error):
尽管如此，我还是收到了以下错误（以下是错误的一部分）：
checking Java support in R... present:
interpreter : '/usr/lib/jvm/jre/bin/java'
archiver : '/usr/lib/jvm/jre/../bin/jar'
compiler : '/usr/lib/jvm/jre/../bin/javac'
header prep.: '/usr/lib/jvm/jre/../bin/javah'
cpp flags : '-I/usr/lib/jvm/java/include I/usr/lib/jvm/java/include/linux'
java libs : '-L/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64/server -ljvm'
checking whether Java run-time works... ./configure: line 3729: /usr/lib/jvm/jre/bin/java: No such file or directory
no configure: error: Java interpreter '/usr/lib/jvm/jre/bin/java' does not work
As you can see the error shows that /usr/lib/jvm/jre/bin/java: No such file or directory. But I have not set this as myfilepath. How do I prevent the installer from looking at this path?
如您所见，错误显示/usr/lib/jvm/jre/bin/java: No such file or directory。但我没有将其设置为myfilepath。如何防止安装程序查看此路径？
Kindly help.
请帮助。
回答by Sushant Gupta
sudo R CMD javareconf
This works perfectly. Keeping this here if someone reads this in future.
这完美地工作。如果将来有人阅读此内容，请将其保留在此处。
回答by Colonna Maurizio
I have a VM of Ubuntu 14.04 LTS on VirtualBox, and the real path of installation of my java-jdk is the following :
我在 VirtualBox 上有一个 Ubuntu 14.04 LTS 的虚拟机，我的 java-jdk 的实际安装路径如下：
/usr/lib/jvm/java-7-openjdk-amd64
This command worked very fine for my situation. I had this type of error from installation o rJava package on RStudio:
这个命令非常适合我的情况。我在 RStudio 上安装或 rJava 包时遇到了这种类型的错误：
*./configure: line 3736: /usr/lib/jvm/default-java/jre/bin/java: No such file or directory*
First I' have modified the profile in this way : sudo gedit /etc/profile and then added this instructions at the eof:
首先，我以这种方式修改了配置文件：sudo gedit /etc/profile，然后在 eof 中添加了以下说明：
JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH
After this, from terminal session I've typed the command:
在此之后，从终端会话我输入了命令：
sudo R CMD javareconf
and the package rJava was successfully installed.
并且包 rJava 已成功安装。
Note: You might also have to set the LD_LIBRARY_PATHenvironment variable, before running sudo R CMD javareconf.
注意：您可能还必须在运行之前设置LD_LIBRARY_PATH环境变量sudo R CMD javareconf。
回答by MItrajyoti Kusari
Faced same problem in Ubuntu 14.04. This installation guide was helpful for me after going through a straightforward installation. http://www.korecky.org/?p=1254(Installation of R) and [http://www.korecky.org/?p=847](Installation of Java)
在 Ubuntu 14.04 中遇到同样的问题。经过简单的安装后，本安装指南对我很有帮助。 http://www.korecky.org/?p=1254（R 的安装）和 [ http://www.korecky.org/?p=847]（Java 的安装）
