Upgrade to 1.5.0

Hi all!

my apologies if this is too elementary:


I upgraded to 1.5.0. I copied my library folder on version 1.4.1 to the 
library folder on 1.5.0. When I try to upload a package via the menu I get 
this:

Error in sort(.packages(all.available = TRUE)) :
         1 argument passed to "sort" which requires 2.

do I have to copy any other file from the previous version?.

Thanks in advance.

Ignacio P?rez
Escuela Colombiana de Ingenier?a

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