Hello, when I try to load a gff file in trackster on a galaxy instance (ubuntu server), I get the following error: Traceback (most recent call last): File "/home/pgtgal/galaxy-dist/lib/galaxy/datatypes/converters/interval_to_fli.py", line 91, in main() File "/home/pgtgal/galaxy-dist/lib/galaxy/datatypes/converters/interval_to_fli.py", line 30, in main for feature in read_unordered_gtf( open( in_fname, 'r' ) ): File "/home/pgtgal/galaxy-dist/lib/galaxy/datatypes/util/gff_util.py", line 375, in read_unordered_gtf transcript_id = line_attrs[ 'transcript_id' ] KeyError: 'transcript_id' I guess it's because not all the lines in the file have a transcript_id. Is it a specification in gff file format? I made it work by changing the line 65 of /home/pgtgal/galaxy-dist/lib/galaxy/datatypes/util/gff_util.py by this: transcript_id = line_attrs.get('transcript_id' , 0) You may want to change the default 0 value by something more pertinent... if it is really a bug and not a mistake from myself. Best regards Yec'han ================================================ Yec'han LAIZET Ingenieur Plateforme Genome Transcriptome Tel: 05 57 12 27 75 _________________________________ INRA-UMR BIOGECO 1202 Equipe Genetique 69 route d'Arcachon 33612 CESTAS ================================================