errror: Error in reading your fastafile, at position -1.

Hello,

I’m totally new on mothur and on bioinformatics too. I am following the tutorial of this wiki. The first command that i tried (align.seqs) i found this error:
Error in reading your fastafile, at position -1. Blank name.
So I though the problem was with my fasta file and I tried with the files of the Esophageal community analysis examples. I did the command:

mothur > align.seqs(fasta=esophagus.fasta, reference=core_set_aligned.imputed.fasta)

Reading in the core_set_aligned.imputed.fasta template sequences…

Error in reading your fastafile, at position -1. Blank name.
Error in reading your fastafile, at position -1. Blank name.
Error in reading your fastafile, at position -1. Blank name.

And I needed to abort the terminal.

Does anyone could help me?
Thank you very much for help!
Julliane

Could you tell me what version of mothur? What OS are you running?

I’m using mothur v.1.25.0 and my OS is Linux!
Thanks for answer!

Could you send the complete logfile to mothur.bugs@gmail.com?

forgive me but what is the “complete logfile”??

Everytime mothur runs it creates a logfile. It should have a name like mothur.1335814360.logfile.

Thanks for sending your logfile. I noticed you are running mothur version 1.18.1. We had a similar bug report with people using g++ 4.6. It was corrected in version 1.22.1. Can you try downloading our current version, 1.25.0, and see if you still have the problem?