Hi,

I am trying to get GEO datset GSE71989, but I am getting following error.

gset <- getGEO("GSE71989")
Found 1 file(s)
GSE71989_series_matrix.txt.gz
trying URL 'https://ftp.ncbi.nlm.nih.gov/geo/series/GSE71nnn/GSE71989/matrix/GSE71989_series_matrix.txt.gz'
Content type 'application/x-gzip' length 4240450 bytes (4.0 MB)
==================================================
downloaded 4.0 MB

Error: Duplicate identifiers for rows (75, 83), (76, 84), (77, 85), (78, 86), (79, 87), (80, 88), (81, 89), (82, 90)

Please suggest me the solution.

I don't know why you get the error - there's a bunch of tidyverse blahblah in the code for GEOquery and I'm not cool enough to grok that stuff. Anyway, you don't have to use the GSE matrix data, you can just get the celfiles and process yourself.

> getGEOSuppFiles("GSE71989")
trying URL 'https://ftp.ncbi.nlm.nih.gov/geo/series/GSE71nnn/GSE71989/suppl//GSE71989_RAW.tar?tool=geoquery'
Content type 'application/x-tar' length 122869760 bytes (117.2 MB)
downloaded 117.2 MB

> setwd("GSE71989/")
> untar("GSE71989_RAW.tar")
> library(oligo)

> fls <- dir(".", "CEL.gz")
> dat <- rma(read.celfiles(fls))

Loading required package: pd.hg.u133.plus.2
Loading required package: RSQLite
Loading required package: DBI
Platform design info loaded.
Reading in : GSM1849335_JJ-1.CEL.gz
Reading in : GSM1849336_JJ-2.CEL.gz
Reading in : GSM1849337_JJ-3.CEL.gz
Reading in : GSM1849338_JJ-4.CEL.gz
Reading in : GSM1849339_JJ-5.CEL.gz
Reading in : GSM1849340_JJ-6.CEL.gz
Reading in : GSM1849341_JJ-7.CEL.gz
Reading in : GSM1849342_JJ-8.CEL.gz
Reading in : GSM1849343_JJ-26.CEL.gz
Reading in : GSM1849344_JJ-27.CEL.gz
Reading in : GSM1849345_JJ-29.CEL.gz
Reading in : GSM1849346_JJ-31.CEL.gz
Reading in : GSM1849347_JJ-32.CEL.gz
Reading in : GSM1849348_JJ-34.CEL.gz
Reading in : GSM1849349_JJ-39.CEL.gz
Reading in : GSM1849350_JJ-43.CEL.gz
Reading in : GSM1849351_JJ-44.CEL.gz
Reading in : GSM1849352_JJ-45.CEL.gz
Reading in : GSM1849353_JJ-46.CEL.gz
Reading in : GSM1849354_JJ-47.CEL.gz
Reading in : GSM1849355_JJ-49.CEL.gz
Reading in : GSM1849356_JJ-50.CEL.gz
Background correcting
Normalizing
Calculating Expression

> dat
ExpressionSet (storageMode: lockedEnvironment)
assayData: 54675 features, 22 samples
  element names: exprs
protocolData
  rowNames: GSM1849335_JJ-1.CEL.gz GSM1849336_JJ-2.CEL.gz ...
    GSM1849356_JJ-50.CEL.gz (22 total)
  varLabels: exprs dates
  varMetadata: labelDescription channel
phenoData
  rowNames: GSM1849335_JJ-1.CEL.gz GSM1849336_JJ-2.CEL.gz ...
    GSM1849356_JJ-50.CEL.gz (22 total)
  varLabels: index
  varMetadata: labelDescription channel
featureData: none
experimentData: use 'experimentData(object)'
Annotation: pd.hg.u133.plus.2

This was a bug. It should be fixed in the next version in the Bioc-Devel (2.47.18) and in Bioc-Release (2.46.15). You can install from the GEOquery github repository if you need a quicker solution.