library("xlsx")
Loading required package: rJava
Error : .onLoad failed in loadNamespace() for 'rJava', details:
call: fun(libname, pkgname)
error: JAVA_HOME cannot be determined from the Registry
Error: package ‘rJava’ could not be loaded
xlsx、rjva包都已经下载安装了,还缺什么安装包吗?


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