[R] Problem with reading file saved in directory

[Spencer Brackett]

Good evening,

I set up a working directory to read the indicated desktop file, but
implementation of the read.file function produced the following error...

>meth = read.table(file = "~/Vakul's GBM code/mapper.txt", sep  ="\t",
header = T, row.names = 1)
Error in read.table(file = "~/Vakul's GBM code/mapper.txt", sep = "\t",  :
duplicate 'row.names' are not allowed
In addition: Warning message:
In scan(file = file, what = what, sep = sep, quote = quote, dec = dec,  :
  EOF within quoted string

What does it mean by "duplicate row names are not allowed" ? is the file I
am attempting to access somehow not compatible? Also, how do I address the
second part of the warning referring to what was found "In scan" ?

Best,

Spencer

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