Hello all,

  I am new to UGENE. I've tried running a 5000 sequence alignment using MUSCLE. Somewhere in the process I end up with this error:

[ERROR][13:50] Task {MUSCLE align 'KS_in_cluster.aln'} finished with error: Subtask {Workflow wrapper 'MUSCLE align 'KS_in_cluster.aln''} is failed: Subtask {Run workflow: align} is failed: Subtask {Read document: 'Co6348.fasta'} is failed: Document is empty.

I've tried this on three computers OS X running Lion on a MacBook Air, and two separate Windows 7 machines (32 bit and 64 bit).

In UGENE I open the fasta file and then export as an alignment file. I've tried both the fasta format and clustalw format. I end up with the same error.

I ran a smaller subset of the sequences and it aligned with no problem.

I was wondering if this error message means by original fasta in not formatted correctly somewhere in the file.

Thanks!
ara