Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • seeker
    Member
    • Jan 2011
    • 26

    Assertion failed error in BFAST localalign

    Hi all, I'm getting the following error when trying to combine bfast and bwa mapped reads. Any suggestions would be appreciated.

    command:
    bfast localalign -f rna.fasta -1 p1.f3.reads.bmf -2 p1.f5.reads.bfm -A 1 -t -U -n 4 > p1.reads.baf

    error:
    Assertion failed: (0 == strcmp(m->readName, r2_name)), function RGMatchesRead_2bmf, file RGMatches.c, line 51.
    Abort trap
    Assertion failed: (0 == strcmp(m->readName, r2_name)), function RGMatchesRead_2bmf, file RGMatches
  • nilshomer
    Nils Homer
    • Nov 2008
    • 1283

    #2
    Looks like your reads are not in the same order within the two files (also p1.f5.reads.bfm should be p1.f5.read.bmf). Take a look at your input FASTQ files to make sure the read names are in the same order.

    Comment

    • seeker
      Member
      • Jan 2011
      • 26

      #3
      The first and last 100 lines of reads are in the same order. I've renamed the f5 files to bmf (which was a typo when making the files). Could that be responsible?

      Comment

      • seeker
        Member
        • Jan 2011
        • 26

        #4
        Changed the name and still the same error. How could I ensure that all the names are in the same order?

        Comment

        • nilshomer
          Nils Homer
          • Nov 2008
          • 1283

          #5
          Where are you getting your FASTQ from?

          Comment

          • seeker
            Member
            • Jan 2011
            • 26

            #6
            From the solid2fastq script that came with bfast+bwa. I made a seperate fastq for each of the F3 and F5 reads rather than paired.

            Comment

            • nilshomer
              Nils Homer
              • Nov 2008
              • 1283

              #7
              Ah, you have to make them together. You cannot convert them unpaired then input them as paired.

              Comment

              • seeker
                Member
                • Jan 2011
                • 26

                #8
                Oh, I was following the flow from here: http://seqanswers.com/forums/showthr...ight=bfast+bwa

                So, you make the fastq paired, then map using the same fastq file for the f3 and f5 seperately?

                Comment

                Latest Articles

                Collapse

                • SEQadmin2
                  Nine Things a Sample Prep Scientist Thinks About Before Sequencing
                  by SEQadmin2


                  I’m not a sequencing expert. I’m a purification scientist who uses NGS to evaluate workflows my group develops. With this perspective, we think about the sample first and the NGS workflow second. The sequencer is an exceptionally honest reporter, but it can only report on what you give it, so whether you get clean, interpretable data from an NGS workflow is largely determined before you begin.

                  Here are nine questions we think about, in roughly the order they matter, before...
                  06-18-2026, 07:11 AM
                • SEQadmin2
                  From Collection to Sequencing: Why Sample Preparation and Preservation Define Sequencing Data
                  by SEQadmin2


                  Data variability is still an issue in sequencing technologies despite the advances in reproducibility and accuracy of these platforms. But the problem does not originate in the sequencing itself, but in the previous steps, before the sample reaches the sequencer.


                  The first step is collection, followed by preservation and sample preparation for analysis. Most scientists overlook those steps, but not being careful might just be skewing the experiment’s results.
                  ...
                  06-02-2026, 10:05 AM

                ad_right_rmr

                Collapse

                News

                Collapse

                Topics Statistics Last Post
                Started by SEQadmin2, Yesterday, 11:10 AM
                0 responses
                8 views
                0 reactions
                Last Post SEQadmin2  
                Started by SEQadmin2, 06-17-2026, 06:09 AM
                0 responses
                43 views
                0 reactions
                Last Post SEQadmin2  
                Started by SEQadmin2, 06-09-2026, 11:58 AM
                0 responses
                104 views
                0 reactions
                Last Post SEQadmin2  
                Started by SEQadmin2, 06-05-2026, 10:09 AM
                0 responses
                125 views
                0 reactions
                Last Post SEQadmin2  
                Working...