# DADA2 Exit Code -11
**URL:** https://forum.qiime2.org/t/dada2-exit-code-11/2333
**Category:** User Support
**Tags:** dada2
**Created:** [December 25, 2017, 5:59pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333 "2017-12-25T17:59:45Z")
**Posts on this page:** 15
**Page:** 1
### Author:  [@Harry](https://forum.qiime2.org/u/Harry)
#### Post date: [December 25, 2017, 5:59pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/1 "2017-12-25T17:59:45Z")
Thanks! Finally, I successfully use R to run dada2 within 12 hours. That 's great. But I have another question regarding dada2.
Since qiime2-2017.12 version is released, I am trying the use qiime2-2017.12 to run dada2 1.6, but always get such error:
Plugin error from dada2:
An error was encountered while running DADA2 in R (return code -11), please inspect stdout and stderr to learn more.
Debug info has been saved to /var/folders/b0/k51zwjxj54g4z8mxsxlxgf6r0000gn/T/qiime2-q2cli-err-bftjvvjj.log
Very confused, I use terminal, why it runs R in terminal and get such error? How could I solve that?
Happy Holiday
---
### Author:  [@thermokarst](https://forum.qiime2.org/u/thermokarst)
#### Post date: [December 27, 2017, 4:56pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/3 "2017-12-27T16:56:09Z")
Hi @Harry, sorry to hear things aren't going well. Can you provide the following information:
- The full command you ran (copy-and-paste please!)
- If possible, your `demux summarize` visualization for the sequences you are trying to process through `q2-dada2`
- The detailed output log, when run with `--verbose`, or, if the log listed above is still available, please attach that (`/var/folders/b0/k51zwjxj54g4z8mxsxlxgf6r0000gn/T/qiime2-q2cli-err-bftjvvjj.log`)
Thanks! 🦖
---
### Author:  [@Martin](https://forum.qiime2.org/u/Martin)
#### Post date: [December 29, 2017, 12:48pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/5 "2017-12-29T12:48:40Z")
Hi,
I encounter the same problem with release qiime2-2017.12 (it worked fine in qiime2-2017.11)
**The full command:**
qiime dada2 denoise-single
--p-trim-left 0
--p-trunc-len 0
--i-demultiplexed-seqs trimmed-seqs.qza
--p-n-threads 4
--o-representative-sequences rep-seqs.qza
--o-table table.qza
--verbose
**detailed output log:**
Command: run\_dada\_single.R /tmp/qiime2-archive-r2d1yed\_/571a782a-373a-49f6-92b9-7fa50a71821c/data /tmp/tmp5ltx0l07/output.tsv.biom /tmp/tmp5ltx0l07 0 0 2.0 2 consensus 1.0 4 1000000
R version 3.4.1 (2017-06-30)
Loading required package: Rcpp
DADA2 R package version: 1.6.0
1. Filtering .......
2. Learning Error Rates
Not all sequences were the same length.
Not all sequences were the same length.
Not all sequences were the same length.
Not all sequences were the same length.
Not all sequences were the same length.
Not all sequences were the same length.
Not all sequences were the same length.
Initializing error rates to maximum possible estimate.
Sample 1 - 19785 reads in 10633 unique sequences.
\*\*\* caught segfault \*\*\*
address 0x8, cause 'memory not mapped'
Traceback:
1: .Call("\_dada2\_dada\_uniques", PACKAGE = "dada2", seqs, abundances, err, quals, score, gap, use\_kmers, kdist\_cutoff, band\_size, omegaA, max\_clust, min\_fold, min\_hamming, min\_abund, use\_quals, final\_consensus, vectorized\_alignment, homo\_gap, multithread, verbose, SSE)
2: dada\_uniques(names(derep[[i]]$uniques), unname(derep[[i]]$uniques), err, qi, opts[["SCORE\_MATRIX"]], opts[["GAP\_PENALTY"]], opts[["USE\_KMERS"]], opts[["KDIST\_CUTOFF"]], opts[["BAND\_SIZE"]], opts[["OMEGA\_A"]], if (initializeErr) { 1 } else { opts[["MAX\_CLUST"]] }, opts[["MIN\_FOLD"]], opts[["MIN\_HAMMING"]], opts[["MIN\_ABUNDANCE"]], TRUE, FALSE, opts[["VECTORIZED\_ALIGNMENT"]], opts[["HOMOPOLYMER\_GAP\_PENALTY"]], multithread, (verbose \>= 2), opts[["SSE"]])
3: dada(drps[1:i], err = NULL, selfConsist = TRUE, multithread = multithread, VECTORIZED\_ALIGNMENT = FALSE, SSE = 2)
An irrecoverable exception occurred. R is aborting now ...
Traceback (most recent call last):
File "/home/martin/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/q2\_dada2/\_denoise.py", line 126, in denoise\_single
run\_commands([cmd])
File "/home/martin/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/q2\_dada2/_denoise.py", line 35, in run\_commands
subprocess.run(cmd, check=True)
File "/home/martin/miniconda3/envs/qiime2-2017.12/lib/python3.5/subprocess.py", line 398, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['run\_dada\_single.R', '/tmp/qiime2-archive-r2d1yed_/571a782a-373a-49f6-92b9-7fa50a71821c/data', '/tmp/tmp5ltx0l07/output.tsv.biom', '/tmp/tmp5ltx0l07', '0', '0', '2.0', '2', 'consensus', '1.0', '4', '1000000']' returned non-zero exit status -11
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/martin/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/q2cli/commands.py", line 224, in **call**
results = action(\*\*arguments)
File "", line 2, in denoise\_single
File "/home/martin/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/qiime2/sdk/action.py", line 228, in bound\_callable
output\_types, provenance)
File "/home/martin/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/qiime2/sdk/action.py", line 363, in _callable\_executor_
output\_views = self.\_callable(\*\*view\_args)
File "/home/martin/miniconda3/envs/qiime2-2017.12/lib/python3.5/site-packages/q2\_dada2/\_denoise.py", line 137, in denoise\_single
" and stderr to learn more." % e.returncode)
Exception: An error was encountered while running DADA2 in R (return code -11), please inspect stdout and stderr to learn more.
Plugin error from dada2:
An error was encountered while running DADA2 in R (return code -11), please inspect stdout and stderr to learn more.
See above for debug info.
**demux summarize visulization:**
---
### Author:  [@ebolyen](https://forum.qiime2.org/u/ebolyen)
#### Post date: [December 29, 2017, 8:52pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/6 "2017-12-29T20:52:40Z")
Hi @Martin!
> [@Martin](#):
>
> I encounter the same problem with release qiime2-2017.12 (it worked fine in qiime2-2017.11)
Do you have an existing R/R Studio installation, if so what version was it? Something that changed between 2017.11 and 2017.12 is we are now using R 3.4.1.
I wonder if some people weren't using the [RProfile trick](https://forum.qiime2.org/t/dada2-exit-code-11-and-rprofile/1386) and instead had a "compatible" R installed.
Thanks and Happy New Years! 🎆
---
### Author:  [@Martin](https://forum.qiime2.org/u/Martin)
#### Post date: [December 30, 2017, 2:09pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/7 "2017-12-30T14:09:03Z")
Hi,
I am a bit stucked. I am using a clean Linux Debian distribution with only qiime1&2 installed according to the [install docs](https://docs.qiime2.org/2017.12/install/native/). There should be no existing R/R Studio installation.
Based on the description in the [.RProfile trick](https://forum.qiime2.org/t/dada2-exit-code-11-and-rprofile/1386/11) I tested the command:
`R -e ".libPaths()"`
This command returned:
```
> .libPaths()
[1] "/home/martin/miniconda3/envs/qiime2-2017.12/lib/R/library"
>
>
```
I guess this means that everything is okay and no conflicting R installations should be expected?
I even tried to create an `~/.Rprofile` file, including the line `.libPaths(.libPaths()[1])`.
This didn't changed anything and I still encounter the return code -11 while running DADA2.
Cheers,
Martin
[EDIT]
I tried to remove old qiime2 environments (`remove -n qiime2-2017.10`, `remove -n qiime2-2017.11`, `remove -n qiime2-2017.12`, `conda clean -y --all`) and [qiime2 re-installation](https://docs.qiime2.org/2017.12/install/native/), but without any success.
---
### Author:  [@ebolyen](https://forum.qiime2.org/u/ebolyen)
#### Post date: [January 2, 2018, 7:11pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/8 "2018-01-02T19:11:55Z")
Hey @Martin,
What does `uname --all` say for you? I think you are the first one to report this issue on Linux.
Also does running the following command in your QIIME 2 environment fix the issue?
```auto
CDPATH= R -e 'source("https://bioconductor.org/biocLite.R"); biocLite("dada2")'
```
Sorry, we're still trying to figure this out. Thanks for your patience!
---
### Author:  [@Martin](https://forum.qiime2.org/u/Martin)
#### Post date: [January 2, 2018, 11:17pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/9 "2018-01-02T23:17:39Z")
Hi @ebolyen,
thanks for looking into this! (and sorry for hijacking the thread @Harry)
`uname --all` returns:
> Linux debian 4.9.0-4-amd64 #1 SMP Debian 4.9.65-3+deb9u1 (2017-12-23) x86\_64 GNU/Linux
I further tried the command: `CDPATH= R -e 'source("https://bioconductor.org/biocLite.R"); biocLite("dada2")'` (in qiime2 environment).
This resulted in successful downloading and installing of:
> Bioconductor version 3.6 (BiocInstaller 1.28.0)
and
> dada2
Unfortunately, I still get the same -11 exit code when running dada2 with the following command:
> qiime dada2 denoise-single
> --p-trim-left 0
> --p-trunc-len 0
> --i-demultiplexed-seqs trimmed-seqs.qza
> --p-n-threads 4
> --o-representative-sequences rep-seqs.qza
> --o-table table.qza
> --verbose
Anything else I can do to assist with this problem? I am open for experiments 😉
Best,
Martin
---
### Author:  [@ebolyen](https://forum.qiime2.org/u/ebolyen)
#### Post date: [January 3, 2018, 6:19pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/11 "2018-01-03T18:19:39Z")
Thanks @Martin!
Could you run the following:
```bash
grep avx2 /proc/cpuinfo | wc -l
```
You should see a number that matches the number of CPUs you have.
If that shows a number other than 0, then we need to look closer. Would you be able to share your data with us? We're not sure if it's a system problem or an input problem yet. Also if you are available to do further testing, we could try a very hand-crafted R installation to see if it's a linking problem in the binary.
Thanks!
---
### Author:  [@ebolyen](https://forum.qiime2.org/u/ebolyen)
#### Post date: [January 3, 2018, 9:33pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/12 "2018-01-03T21:33:25Z")
Here's another thing to try:
```bash
conda create -n DONOTUSE --file https://data.qiime2.org/distro/core/qiime2-2017.12-conda-linux-64.txt
source activate DONOTUSE
wget -qO- https:/uploads/qiime21/original/1X/ac621debfd04f561bf1075b4efa56c0e947a1928.txt > `which run_dada_single.R`
wget -qO- https:/uploads/qiime21/original/1X/07fa5193f904022996a35a963b12b9ac79dbb1f4.txt > `which run_dada_paired.R`
```
This'll create a dummy environment with a few tweaks. If you could test out your data inside this environment that would be really helpful!
---
### Author:  [@Martin](https://forum.qiime2.org/u/Martin)
#### Post date: [January 3, 2018, 9:41pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/13 "2018-01-03T21:41:41Z")
Hi @ebolyen,
the command `grep avx2 /proc/cpuinfo | wc -l` says that I have `8` CPUs.
I uploaded the qiime2 artifact which I wanted to use as input for dada2. If interested, I could give the full script I used to prepare these data.
And yes, I am available for further testing. Actually, I am very happy and positively surprised about the effort you put so far into my problem 👍
Cheers,
Martin
[Edit]
hmmm... I uploaded the file `trimmed-seqs.qza` (twice), but I do not see how to link it. Did it worked?
---
### Author:  [@ebolyen](https://forum.qiime2.org/u/ebolyen)
#### Post date: [January 3, 2018, 9:48pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/14 "2018-01-03T21:48:40Z")
Our forum has a size limit and doesn't seem to be returning an error like it's supposed to. We fortunately have just been able to reproduce the issue with @Peris's data, so no worries there!
Thanks again for all the help, we're going to get started on the next steps now that we can reproduce!
---
### Author:  [@Martin](https://forum.qiime2.org/u/Martin)
#### Post date: [January 3, 2018, 10:00pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/15 "2018-01-03T22:00:03Z")
Well, I guess its a good thing to reproduce errors 😉
The suggested creation of the `conda DONOTUSE environment` works!
Normally the dada2 stopped after giving this output:
> Initializing error rates to maximum possible estimate.
> Sample 1 - 19785 reads in 10633 unique sequences.
Now it proceeded with all of my 7 samples and is still running....
---
### Author:  [@thermokarst](https://forum.qiime2.org/u/thermokarst)
#### Post date: [January 5, 2018, 8:08pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/16 "2018-01-05T20:08:26Z")
We have just released a patched update to `q2-dada2` that appears to fix this 🤞 . Please follow [the instructions here](https://forum.qiime2.org/t/qiime-2-2017-12-release-is-now-live/2308/10) to get your hands on the patch, and please let us know how it goes! Thanks so much for all the support while we were debugging this! 🦖
---
### Author:  [@Martin](https://forum.qiime2.org/u/Martin)
#### Post date: [January 6, 2018, 11:19pm UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/18 "2018-01-06T23:19:52Z")
Well done 🤟
From my point of view, the issue is solved!
---
### Author:  [@system](https://forum.qiime2.org/u/system)
#### Post date: [February 7, 2018, 5:20am UTC](https://forum.qiime2.org/t/dada2-exit-code-11/2333/19 "2018-02-07T05:20:06Z")
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