Hi @Partisan,
Can you please describe your data a bit more:
- how many samples do you have in your study?
- are these 16S sequences?
Just a note, as of QIIME 2 2017.6, the q2-dada2 plugin supports variable length sequences. The log you attached doesn’t appear to actually be related to variable length sequences, I think that message just happened to be the last thing emitted before DADA2 died.
Thanks!