无法在R中加载mailR包

Question

我想在我的本地rStudio中加载mailR包，然后在ec2服务器上运行一个。我收到这个错误：

> require(mailR)
Loading required package: mailR
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 message:
package ‘mailR’ was built under R version 3.3.3 

如果我尝试加载rJava，我会得到：

> require(rJava)
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 message:
package ‘rJava’ was built under R version 3.3.2 

感谢您的帮助！