Dear R Help list, I'm facing a problem with "tk_choose.dir", I try to find an explanation and a solution. I use :rm(list=ls(all=TRUE)) datawd<-"/mnt/3-Biot/data_input/" setwd(datawd) files<-tk_choose.files(filters = matrix(c("/*.csv",".csv"),1, 2, byrow = TRUE),caption ="Select file with csv format") If I change the name of the folder like this ("data_input" becomes "data") and delete the folder "data_input" and then run : rm(list=ls(all=TRUE)) datawd<-"/mnt/3-Biot/data/" setwd(datawd) files<-tk_choose.files(filters = matrix(c("/*.csv",".csv"),1, 2, byrow = TRUE),caption ="Select file with csv format") I received this error :"Impossible to acess to the directory "/mnt/3-BioT/data_input" permission denied" The old path and folder is kept in memory in tk_choose.file. What can I do ? Thanks for your help, C?line I use R version 3.2.3 on linux-gnu C?line Jouanin [[alternative HTML version deleted]]