包错误：启动 RStudio 时 sp

Question

When starting RStudio the following message appears: Loading required package: sp. I try to install the sp package and the message appears:

Warning in install.packages :
  package ‘sp’ is in use and will not be installed

That way, I can not install it. Also, because of this error, I'm having trouble calling the dplyr package. How do I fix this error?

Answer 1

Try this-

detach("package:sp", unload = TRUE)
install.packages("sp", dependencies=TRUE)