Rstudio import data from excel

[Jia]

Hi all,

I encounter an issue when I first used Rstudio for my statistic course. I tried to import data from excel then this following window appears. How do I solve it? Thank you.

Jia

[andresrcs]

You need to update those packages but apparently RStudio is not being able to connect to the repository, is your internet connection behind a proxy server or firewall? That is usually the case when you are at work or school.

[Jia]

I don't think so. I'm connecting the wifi from my home in HongKong. Do you know how can I solve it otherwise? Where can I find those packages?

[andresrcs]

Try not using secure http for the connection, what happens if you use this command?

install.packages('Rcpp', repos='http://cran.rstudio.com/')