Hello helpers of the QIIME2 community, many thanks in advance for advice on the below query (for paired end reads using the 341F/806R primer pair that had been processed using DADA2):
Ran the following…
qiime feature-classifier extract-reads
–i-sequences 99_otus.qza
–p-f-primer CCTACGGGNGGCWGCAG
–p-r-primer GGACTACNVGGGTWTCTAAT \
–o-reads ref-seqs.qza
With the resulting error:
Plugin error from feature-classifier:
Argument to parameter ‘sequences’ is not a subtype of FeatureData[Sequence].
Debug info has been saved to /var/folders/8x/rqqs6m296k7g3trbdz559cnm0000gp/T/qiime2-q2cli-err-jqxpf7is.log
And the debug info says:
Traceback (most recent call last):
File “/Users/sm939/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/q2cli/commands.py”, line 224, in call
results = action(**arguments)
File “”, line 2, in extract_reads
File “/Users/sm939/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/qiime2/sdk/action.py”, line 196, in bound_callable
self.signature.check_types(**user_input)
File “/Users/sm939/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/qiime2/core/type/signature.py”, line 299, in check_types
"subtype of %r." % (name, spec.qiime_type))
TypeError: Argument to parameter ‘sequences’ is not a subtype of FeatureData[Sequence].
Not sure what’s going on? Can you help? I’ve searched this forum but have not been able to find an answer.