# DADA2 error (return code -6)

**URL:** <https://forum.qiime2.org/t/dada2-error-return-code-6/2605>\
**Category:** User Support\
**Tags:** dada2\
**Created:** [January 17, 2018, 4:33pm UTC](https://forum.qiime2.org/t/dada2-error-return-code-6/2605 "2018-01-17T16:33:22Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![thermokarst](https://forum.qiime2.org/letter_avatar_proxy/v4/letter/t/8e7dd6/32.png) [@thermokarst](https://forum.qiime2.org/u/thermokarst)\
**Post date:** [January 17, 2018, 5:25pm UTC](https://forum.qiime2.org/t/dada2-error-return-code-6/2605/3 "2018-01-17T17:25:16Z")

</div>

Hi @hlopez!

> [@hlopez](#):
>
> dyld: Library not loaded: @rpath/libncurses.5.dylib

Yikes! This makes me think that some wires are getting crossed in the `r`-department! Do you have an installation of R present that is unrelated to QIIME 2 (e.g. R Studio)? If so, can you check [out this thread](https://forum.qiime2.org/t/rprofile-and-libpaths-with-dada2-exit-code-11/1519/3) and let us know if the workaround proposed there helps? Thanks! 🦖

---

_[View the full topic](https://forum.qiime2.org/t/dada2-error-return-code-6/2605)._