Error: the file 'GTF_FILE.stranded.ALFA_index.stranded.ALFA_index' doesn't exist.
Opened this issue · 8 comments
Hello again,
After generating the ALFA index files I get an issue when processing reads:
rna2@d33502:~/ALFA$ python3 alfa.py -g GTF_FILE.stranded.ALFA_index --bam iseq100.l20.n0.a.m5.bam -s forward -d 1 -t 0 100 --pdf output.pdf
ALFA
Checking parameters
Error: the file 'GTF_FILE.stranded.ALFA_index.stranded.ALFA_index' and/or the file 'GTF_FILE.stranded.ALFA_index.unstranded.ALFA_index' doesn't exist.
End of program
I am very kean to use this program and would appreciate your help,
Thanks
Hello,
Actually, when you generated the index, you have specified an index name (argument "-g") that you should reuse in your next command (still "-g" argument), without "(un)stranded.ALFA_index" suffix.
Cheers,
Mathieu
Hi again,
As you can see in the output, the chromosome names differs in your reference genome from the ones in your BAM file(s). ALFA has no way to infer the correspondence so you have to make them match either by changing them in the reference in the BAM file(s).
Cheers,
Mathieu
Yes.