Hi,

I am trying to do mutation analysis from TCGA data, and I am doing it using a simple process like this:

query.met <- GDCquery(
    project = project, 
    data.category = "Simple Nucleotide Variation", 
    access = "open", 
    data.type = "Masked Somatic Mutation", 
    workflow.type = "Aliquot Ensemble Somatic Variant Merging and Masking")

GDCdownload(query.met)

mut <- GDCprepare(query.met)

But, it is giving me an error as:

Error: No such process.

I tried TCGA-LUAD, TCGA-LUSC, and TCGA-COAD as projects, but the error is the same in all cases.

R4.2.1, TCGAbiolinks v2.25.3

I tried googling but did not get any clue. If anybody could point out any error or hint, that would be great.