I don't realice what Idid, but worked!!!
I executed your advice in Seqs.fna is not a(n) QIIME1DemuxFormat file.
I executed:
cat seqs.fna | tr 'acgt' 'ACGT' > new_seqs.fna
qiime tools import \
--input-path new_seqs.fna \
--output-path seqs.qza \
--type SampleData[Sequences]
And its created the files:
new_seqs.fna
seqs.qza
-type
-input-path
-ouput-path
The last 3 files are empty.
Thanks for your help!!
Ro