loading dplyr after plyr is causing issues

Question

Test Case:

library(dplyr)
library(plyr)
library(dplyr)
mtcars%>%rename(x=gear)

This gives error. Any help would be greatly appreciated.

Answer 1

Based on @hadley's tweet. Best answer is to load plyr ALWAYS before dplyr, AND not load plyr again. Pasting his tweet for reference.

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Hadley Wickham ‏@hadleywickham  Jul 27
@gunapemmaraju just load plyr before dplyr?

Answer 2

I have this problem when require plyr again sourcing files. You can do

if("dplyr" %in% (.packages())){
          detach("package:dplyr", unload=TRUE) 
          detach("package:plyr", unload=TRUE) 
} 
library(plyr)
library(dplyr)