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  • GSNAP genome directory problems

    Hi All,

    I was wondering if anyone could help me running GSNAP, I assume I've got a fairly simple problem.
    I first used gmap_build to build a reference
    gmap_build -d /Users/kjames/Documents/Chapter5NGS/ROD/GMAP/ RODRef.fasta

    And then when I try to run GSNAP it has problems finding -d
    gsnap -d /Users/kjames/Documents/Chapter5NGS/ROD/GMAP/ -m 5 -A sam RODc_1.fastq RODc_2.fastq

    And it gives the error:

    Unable to find genome directory /usr/local/share//Users/kjames/Documents/Chapter5NGS/ROD/GMAP. Either recompile the GMAP package
    to have the correct default directory (seen by doing gmap --version),
    or use the -D flag to gmap to specify the correct genome directory.

    I'm wondering if it's hidden the reference elsewhere but I can't see an obvious location.

    Any help would be great appreciated,

    Kat

  • #2
    Since you did not create your genome indexes in the "genome" directory you may have to specify (NOTE: Capital D) "-D /Users/kjames/Documents/Chapter5NGS/ROD/GMAP/".

    See quote from GMAP help below:

    we assume that you have installed a
    genome database called <genome> in your GMAPDB directory. (If your
    database is located elsewhere, you can specify the -D flag to gmap or
    set the environment variable GMAPDB to point to that directory.)

    Comment


    • #3
      Thanks so much GenoMax! I had my directories and databases muddled up, all working brilliantly now.

      Kat

      Comment

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