错误：安装xlsx时无法加载包'rJava'

Question

我正在尝试安装xlsx包。安装工作正常，但是当我加载库时，我收到以下错误：

> require(xlsx)
Loading required package: xlsx
Loading required package: rJava
Error : .onLoad failed in loadNamespace() for 'rJava', details:
 call: fun(libname, pkgname)
 error: No CurrentVersion entry in Software/JavaSoft registry! Try re-    installing Java and make sure R and Java have matching architectures.
 In addition: Warning messages:
 1: package ‘xlsx’ was built under R version 3.2.3 
 2: package ‘rJava’ was built under R version 3.2.3 
Failed with error:  ‘package ‘rJava’ could not be loaded’

我用Google搜索并说安装正确版本的Java可能是个问题。但是，当我下载最新版本并开始新的r-session时，我仍然遇到同样的问题。

是否有更多人遇到此问题？还有一些快速修复？

Answer 1

我正在使用Linux，当我更新R或Java以使用rJava库（xlsx需要）时，我需要从shell运行此命令（在R会话之外）

sudo su -
R CMD javareconf

我希望这会有所帮助。