I’m new to nextstrain, I was trying to run a division-focused analysis on data downloaded from gisaid. the iqtree algorithm seem to have worked fine for 3 ours; then, augure refine was launched and it gave me this warnings:
WARNING: TreeAnc._attach_sequences_to_nodes: NO SEQUENCE FOR LEAF:
WARNING: TreeAnc: 1 nodes don’t have a matching sequence in the
alignment. POSSIBLE ERROR.
Then, it stops abruptly with this
File “/localRaid/anaconda3/envs/nextstrain/lib/python3.6/site-packages/treetime/treetime.py”, line 453, in reroot
raise UnknownMethodError(‘TreeTime.reroot – ERROR: unsupported rooting mechanisms or root not found’)
treetime.UnknownMethodError: TreeTime.reroot – ERROR: unsupported rooting mechanisms or root not found
Could you please help me to complete the analysis?
thank you in advance,