Error:long vectors not supported yet: memory.c:3940

[Olsennnnn]

Hi,
While running this
laml.tnm = trinucleotideMatrix(maf = combined_maf, prefix = 'chr', add = TRUE, ref_genome = "BSgenome.Hsapiens.UCSC.hg18")
, I got a mistake, like

Warning in trinucleotideMatrix(maf = combined_maf, prefix = "chr", add = TRUE,  :
  Chromosome names in MAF must match chromosome names in reference genome.
Ignorinig 4253421 single nucleotide variants from missing chromosomes chr23, chr25, chr26
-Extracting 5' and 3' adjacent bases
-Extracting +/- 20bp around mutated bases for background C>T estimation
Error in .Call2("XStringSet_letter_frequency", x, collapse, codes, baseOnly,  : 
  long vectors not supported yet: memory.c:3940

Do you have any suggestion how to solve it?
Thanks

[PoisonAlien]

Hi,

I'm sorry for not getting back to you sooner. Chromosome names in your MAF appear to have the chr prefix already. You do not need to use the prefix argument.