Regarding Error query

My name is Ruddhida Vidwans, I am a Ph.D. Research Scholar at Jain University, Bengaluru, India. My research area is Forensic Microbiology.

Currently, apart from my Ph.D., I am focussing on learning next-generation sequencing analysis. For that, I am practicing with the publicly available data.

I am using the “GSE163207” ID from GEO datasets for practice.

and referring to the paper entitled “Analysis workflow of publicly available RNA-sequencing datasets” for the analysis guidance”.

I am able to perform initial tasks,

But, after—
"rownames(GSE163207)<-clindata$title" this command,
i got error as—-

"Error in `rownames<-`(`*tmp*`, value = c("Individual 1, PMI 0", "Individual 1, PMI 3",  :
  attempt to set 'rownames' on an object with no dimensions"

Can anyone please help me in rectifying this error?

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