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  • MapSplice error: open reads file

    Hi all,
    I am currently trying to use MapSplice and compare it with Tophat and SpliceMap. My reads are 60bp long single end in fasta format. When I try to run it I get the following:

    bin directory: [/opt/MapSplice_1.15.1/bin/]
    [Wed Mar 30 13:47:11 2011] Checking for chromosomes files or directory
    [Wed Mar 30 13:47:11 2011] Checking for chromosomes files or directory passed
    [Wed Mar 30 13:47:11 2011] Checking for Bowtie index files
    [Wed Mar 30 13:47:11 2011] check reads format
    [Wed Mar 30 13:47:11 2011] merge paired end reads remove short
    [Wed Mar 30 13:47:12 2011] Mapping reads against P.patens_index with Bowtie
    [Wed Mar 30 13:47:18 2011] Converting bowtie mapped to SAM format
    [Wed Mar 30 13:47:18 2011] divide reads
    [Wed Mar 30 13:47:19 2011] Mapping reads against P.patens_index with Bowtie
    [Wed Mar 30 13:47:23 2011] reads all chromo sizes
    [Wed Mar 30 13:47:24 2011] mapsplice_search
    error: open reads file error
    [FAILED]
    Error: fmapsplice_search failed

    Does anyone have any idea of what the problem might be???

    Thank you very much

  • #2
    can you check if the following files are empty or not exist

    ~/tmp/divided_reads.fa
    ~/tmp/unspliced_mapped_reads
    ~/tmp/unspliced_mapped_segments.sorted

    seems the input reads file is small, can you also post the configuration you used to run MapSplice

    Comment


    • #3
      The file unspliced_mapped_segments.sort does not exist, but the others are there and are not empty.
      I have attached the configuration file.
      Attached Files
      Last edited by thek71; 03-30-2011, 06:24 AM.

      Comment


      • #4
        tested on similar data set, can't reproduce the same error

        can you send first 10K lines of

        ~/tmp/unspliced_mapped_segments
        ~/tmp/divided_reads.fa
        ~/tmp/unspliced_mapped_reads
        ~/tmp/chrom_sizes

        to [email protected]?

        Comment


        • #5
          Hi all!
          I have a similar problem using just the example data from the website. Below the run command and the error message, run with Python 2.6.1 on Mac OSX 10.6.7.

          $ python ./bin/mapsplice_segments.py -Q fq -o ./examples/1M_50bp_output_path/ -w 50 -c ./examples/chr20_sequence_index/ -u ./examples/1M_50bp_fastq.txt -B ./examples/chr20_sequence_index/index -L 25

          [Wed May 25 15:33:52 2011] Preparing output location ./examples/1M_50bp_output_path//

          [Wed May 25 15:33:52 2011] Beginning Mapsplice run (v1.15.2)
          -----------------------------------------------
          bin directory: [/Users/slunke/BioInf/Source/MapSplice_1.15.2/bin/]
          [Wed May 25 15:33:52 2011] Checking for chromosomes files or directory
          [Wed May 25 15:33:52 2011] Checking for chromosomes files or directory passed
          [Wed May 25 15:33:52 2011] Checking for Bowtie index files
          [Wed May 25 15:33:52 2011] check reads format
          [Wed May 25 15:33:53 2011] merge paired end reads remove short
          [Wed May 25 15:34:03 2011] Mapping reads against index with Bowtie
          [Wed May 25 15:34:03 2011] Converting bowtie mapped to SAM format
          [Wed May 25 15:34:03 2011] divide reads
          error: open extended file error
          [FAILED]
          Error: divide reads failed

          Any ideas anyone?? Can't figure out where I am going wrong...

          Cheers
          Seb

          Comment


          • #6
            Mac OSX version is at




            Originally posted by valid1983 View Post
            Hi all!
            I have a similar problem using just the example data from the website. Below the run command and the error message, run with Python 2.6.1 on Mac OSX 10.6.7.

            $ python ./bin/mapsplice_segments.py -Q fq -o ./examples/1M_50bp_output_path/ -w 50 -c ./examples/chr20_sequence_index/ -u ./examples/1M_50bp_fastq.txt -B ./examples/chr20_sequence_index/index -L 25

            [Wed May 25 15:33:52 2011] Preparing output location ./examples/1M_50bp_output_path//

            [Wed May 25 15:33:52 2011] Beginning Mapsplice run (v1.15.2)
            -----------------------------------------------
            bin directory: [/Users/slunke/BioInf/Source/MapSplice_1.15.2/bin/]
            [Wed May 25 15:33:52 2011] Checking for chromosomes files or directory
            [Wed May 25 15:33:52 2011] Checking for chromosomes files or directory passed
            [Wed May 25 15:33:52 2011] Checking for Bowtie index files
            [Wed May 25 15:33:52 2011] check reads format
            [Wed May 25 15:33:53 2011] merge paired end reads remove short
            [Wed May 25 15:34:03 2011] Mapping reads against index with Bowtie
            [Wed May 25 15:34:03 2011] Converting bowtie mapped to SAM format
            [Wed May 25 15:34:03 2011] divide reads
            error: open extended file error
            [FAILED]
            Error: divide reads failed

            Any ideas anyone?? Can't figure out where I am going wrong...

            Cheers
            Seb
            Last edited by greenshell; 05-25-2011, 07:14 AM.

            Comment

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