Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • Nicolas902
    Junior Member
    • Feb 2010
    • 8

    bowtie error "Error reading _offs[] array: "

    Dear all,

    I am struggling with a bowtie error which occurs in the ebwt.h, here is the code:

    Code:
    else {
    						// Do it all in one read
    						MM_READ_RET r = MM_READ(_in2, (void*)this->_offs, offsLen << 2);
    						if(r != (MM_READ_RET)(offsLen << 2)) {
    							cerr << "Error reading _offs[] array: " << r << ", " << (offsLen << 2) << endl;
    							throw 1;
    						}
    					}
    I have built an index using a regular fasta file of hg18 downloaded form ucsc and a splice.fa file generated using ERANGE. bowtie-build is running without any error, as well as "getsplicefa.py" which generates the splice file.

    Any idea what this error means?

    Thank you.
  • anecsulea
    Member
    • Dec 2009
    • 12

    #2
    Hi,

    I've been having a similar error. I'm building a bowtie index for a genome sequence, bowtie-build finishes without error, but when trying to align reads with bowtie I get this error:

    "Error reading ebwt array: returned 41750080, length was 168445184
    Your index files may be corrupt; please try re-building or re-downloading. "

    Have you found a solution to the problem ? All suggestions would be appreciated.

    Best,

    Anamaria

    Comment

    • Nicolas902
      Junior Member
      • Feb 2010
      • 8

      #3
      If I remember well, this was a question of directory. I moved the chromosomes sequences I used to the "bowtie" directory.

      I hope this was the solution, tell me if it makes it for you.

      Comment

      • anecsulea
        Member
        • Dec 2009
        • 12

        #4
        No, this can't be it... For me, this error occurs while running TopHat, and in the TopHat run the fasta file and the bowtie index files are in the same directory.

        Comment

        • Ms@New
          Member
          • Jun 2010
          • 17

          #5
          Hi, I get the same error, and I'm using hg18 index from bowtie website.

          Did you figure out what was the problem?

          Comment

          • anecsulea
            Member
            • Dec 2009
            • 12

            #6
            I don't know what the problem was, but I think I did find a solution: see
            Discussion of next-gen sequencing related bioinformatics: resources, algorithms, open source efforts, etc


            Let me know if you need more help on this.

            Originally posted by Ms@New View Post
            Hi, I get the same error, and I'm using hg18 index from bowtie website.

            Did you figure out what was the problem?

            Comment

            Latest Articles

            Collapse

            • SEQadmin2
              Proteomic Platforms: How to Choose the Right Analytical Strategy to Improve Detection and Clinical Applications
              by SEQadmin2


              Proteomics platforms are evolving rapidly, with advances in mass spectrometry and affinity-based approaches expanding what researchers can detect and at what scale. As the field moves toward deeper proteome coverage and clinical applications, scientists face an increasingly complex landscape of tools. This article will explore how researchers are navigating these choices to find the right platform for their work.

              The systematic characterization of the human proteome has
              ...
              07-20-2026, 11:48 AM
            • SEQadmin2
              Advanced Sequencing Platforms Tackle Neuroscience’s Toughest Genomics Problems
              by SEQadmin2



              Genomics studies in neuroscience face a special challenge due to the brain’s complexity and scarcity of samples. Mapping changes in cell type and state using conventional next-generation sequencing methods remains challenging. Advances in technologies like single-cell sequencing, spatial transcriptomics, and long-read sequencing have opened the door to deeper studies of the brain and diseases like Alzheimer’s, amyotrophic lateral sclerosis (ALS), and schizophrenia.
              ...
              07-09-2026, 11:10 AM
            • SEQadmin2
              Cancer Drug Resistance: The Lingering Barrier to Rising Survival
              by SEQadmin2



              Cancer survival rates have significantly increased in the last few decades in the United States, reaching a combined 70% 5-year survival rate by 2021. Behind this number, there are years of research to find new therapies, drug targets, and early detection methods. But there is one core challenge that keeps slowing down these advances, and it’s about drug resistance.

              There is no single reason why many patients don’t respond to treatment as expected. Cancer is...
              07-08-2026, 05:17 AM

            ad_right_rmr

            Collapse

            News

            Collapse

            Topics Statistics Last Post
            Started by SEQadmin2, 07-24-2026, 12:17 PM
            0 responses
            16 views
            0 reactions
            Last Post SEQadmin2  
            Started by SEQadmin2, 07-23-2026, 11:41 AM
            0 responses
            18 views
            0 reactions
            Last Post SEQadmin2  
            Started by SEQadmin2, 07-20-2026, 11:10 AM
            0 responses
            24 views
            0 reactions
            Last Post SEQadmin2  
            Started by SEQadmin2, 07-13-2026, 10:26 AM
            0 responses
            37 views
            0 reactions
            Last Post SEQadmin2  
            Working...