每次尝试安装JGR软件包都会给我错误

Question

这是我尝试安装软件包时遇到的错误：

   JGR::
    Error: unexpected end of line in "JGR::"
    In addition: Warning message:
    In system("/usr/libexec/java_home", intern = TRUE) :
      running command '/usr/libexec/java_home' had status 1

有人可以帮我吗？