无法在R 3.2.1

Question

我正在使用Rstudio 3.2.1。我无法安装xlsx包。以下是我所做的和收到的：

install.packages("xlsx")

Warning in install.packages :

  unable to access index for repository /src/contrib

Installing package into ‘C:/Users/shivanshu/Documents/R/win-library/3.2’

(as ‘lib’ is unspecified)

Warning in install.packages :

  unable to access index for repository /src/contrib

Warning in install.packages :

  package ‘xlsx’ is not available (for R version 3.2.1)

Warning in install.packages :

  unable to access index for repository /bin/windows/contrib/3.2

如何解决此问题？

Answer 1

镜子可能有问题。尝试从CRAN中选择全局镜像。如果这不起作用，那么您可能遇到防火墙或代理问题。