Hay,
I am trying to extract the DNA sequence from a bed file that contains “Chromosome”, “Start”, “End” and “Score” but I am getting 0 bytes and a warning message that (17033 warnings, 1st is: Chromosome by name ‘chr1’ was not found for build ‘hg19’.
Skipped 17033 invalid lines, 1st is #1, “chr1 936092 936483 . 221 .”)
I am using https://usegalaxy.org/.
I want the sequence for motif discovery.
Please help.
Thank you!

