java - libjvm.so : cannot open shared object file: No such file or directory

Question

尝试使用此代码在我的 14.10 ubuntu 上的 R 上安装 rJava 包

if (!require(rJava)) install.packages('rJava')

在重新安装 jdk 后遇到了一些与 java 相关的错误，包括 jni 问题，并尝试再次运行相同的代码，得到了该错误

Error : .onLoad failed in loadNamespace() for 'rJava', details:
  call: dyn.load(file, DLLpath = DLLpath, ...)
  error: unable to load shared object '/usr/local/lib/R/site-library/rJava/libs/rJava.so':
  libjvm.so: cannot open shared object file: No such file or directory
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/usr/local/lib/R/site-library/rJava’
Warning in install.packages :
  installation of package ‘rJava’ had non-zero exit status

The downloaded source packages are in
    ‘/tmp/RtmpfFjrp0/downloaded_packages’
Warning message:
In library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE,  :
  there is no package called ‘rJava’

寻找解决方案，找到几乎所有建议(对于 x64)执行这些命令的人

export LD_LIBRARY_PATH=/usr/lib/jvm/java-8-oracle/lib/amd64:/usr/lib/jvm/java-8-oracle/jre/lib/amd64/server
sudo R CMD javareconf 

但那没有用，我还能做些什么吗？我会提供任何需要的细节

Answer 1

当我尝试在 RStudio 中加载 rJava 时，我遇到了同样的错误。以下解决方案对我有用

1) sudo rstudio-server stop
2) export LD_LIBRARY_PATH=/usr/lib/jvm/jre/lib/amd64:/usr/lib/jvm/jre/lib/amd64/default
3) sudo rstudio-server start

执行上述步骤后，我能够在 RStudio 中成功运行以下内容

> library("DBI")
> library("rJava")
> library("RJDBC")