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  • Cufflink error

    I used BWA for alignment and then used the sam generated by BWA for alignment, but I am getting the following error

    Error: this SAM file doesn't appear to be correctly sorted!
    current hit is at IWGSC_CSS_1DL_scaff_2280152:6081, last one was at IWGSC_CSS_1DL_scaff_2280152:6084
    Cufflinks requires that if your file has SQ records in
    the SAM header that they appear in the same order as the chromosomes names
    in the alignments.
    If there are no SQ records in the header, or if the header is missing,
    the alignments must be sorted lexicographically by chromsome
    name and by position.

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