Running external command line application(s). This may print messages to stdout and/or stderr. The command(s) being run are below. These commands cannot be manually re-run as they will depend on temporary files that no longer exist. Command: run_dada_single.R /tmp/q2-SingleLanePerSampleSingleEndFastqDirFmt-4luh9p6e /tmp/tmpnpl1c1_w/output.tsv.biom /tmp/tmpnpl1c1_w/track.tsv /tmp/tmpnpl1c1_w 249 0 2.0 2 Inf consensus 1.0 24 1000000 NULL 16 R version 3.5.1 (2018-07-02) Loading required package: Rcpp DADA2: 1.10.0 / Rcpp: 1.0.2 / RcppParallel: 4.4.3 1) Filtering Error in names(answer) <- dots[[1L]] : 'names' attribute [96] must be the same length as the vector [92] Execution halted Traceback (most recent call last): File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/site-packages/q2_dada2/_denoise.py", line 154, in _denoise_single run_commands([cmd]) File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/site-packages/q2_dada2/_denoise.py", line 36, in run_commands subprocess.run(cmd, check=True) File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/subprocess.py", line 418, in run output=stdout, stderr=stderr) subprocess.CalledProcessError: Command '['run_dada_single.R', '/tmp/q2-SingleLanePerSampleSingleEndFastqDirFmt-4luh9p6e', '/tmp/tmpnpl1c1_w/output.tsv.biom', '/tmp/tmpnpl1c1_w/track.tsv', '/tmp/tmpnpl1c1_w', '249', '0', '2.0', '2', 'Inf', 'consensus', '1.0', '24', '1000000', 'NULL', '16']' returned non-zero exit status 1. During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/site-packages/q2cli/commands.py", line 327, in __call__ results = action(**arguments) File "", line 2, in denoise_single File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/site-packages/qiime2/sdk/action.py", line 240, in bound_callable output_types, provenance) File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/site-packages/qiime2/sdk/action.py", line 383, in _callable_executor_ output_views = self._callable(**view_args) File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/site-packages/q2_dada2/_denoise.py", line 189, in denoise_single band_size='16') File "/home/kp/.conda/envs/qiime2-2019.7/lib/python3.6/site-packages/q2_dada2/_denoise.py", line 165, in _denoise_single " and stderr to learn more." % e.returncode) Exception: An error was encountered while running DADA2 in R (return code 1), please inspect stdout and stderr to learn more.