I have a dataset where first column is a file name (in the working directory) and the second column is the directory to which I want the file to go. The dataset data2 looks like this:

     [,1]                            [,2]        
[1,] "Folder1/subfolder2/subfolder3" "File.Name1"
[2,] "Folder2/subfolder4/subfolder5" "File.Name2"
[3,] "Folder3/subfolder6/subfolder7" "File.Name3"

I tried to use the function file.copy as follows:

file.copy(from=data2[,2], to=data2[,1], 
          overwrite = TRUE, recursive = FALSE, 
          copy.mode = TRUE)

For which I get the warnings: cannot create file "Folder1/subfolder2/subfolder3", , reason 'No such file or directory'. But there is such a directory. So, I have no idea what could be the problem.