Hi ChrisKeefe,
Thanks a lot for your reply!
In fact, I set the parameter --p-n-threads in this way to avoid another error. If an integer value follows (even 0 ), I got error code 1:
qiime dada2 denoise-paired \
--i-demultiplexed-seqs test_paired-end-demux.qza \
--p-trim-left-f 0 \
--p-trim-left-r 6 \
--p-trunc-len-f 120 \
--p-trunc-len-r 66 \
--o-representative-sequences test_rep-seqs-dada2.qza \
--o-table test_pet-table.qza \
--p-n-threads 0 \
--o-denoising-stats test_stats-dada2.qza
> Plugin error from dada2:
>
> An error was encountered while running DADA2 in R (return code 1), please inspect stdout and stderr to learn more.
>
> Debug info has been saved to /tmp/qiime2-q2cli-err-gi4lpx8m.log
The qiime2-q2cli-err-gi4lpx8m.log is showed in picture.
It seems something wrong with my R(version 3.5.1).
On the other hand, I just find a similar problem, Dada2 plugin error return code error 1. Whether the data quality (as shown in figure I initially provided) cause the problem?