# Reproducible Slicer crash on attempted tab completion, on Nightly 2020-01-08

**URL:** <https://discourse.slicer.org/t/reproducible-slicer-crash-on-attempted-tab-completion-on-nightly-2020-01-08/10146>\
**Category:** Support\
**Created:** [February 6, 2020, 11:32pm UTC](https://discourse.slicer.org/t/reproducible-slicer-crash-on-attempted-tab-completion-on-nightly-2020-01-08/10146 "2020-02-06T23:32:13Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![mikebind](https://avatars.discourse-cdn.com/v4/letter/m/71e660/32.png) [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Post date:** [May 28, 2020, 11:10pm UTC](https://discourse.slicer.org/t/reproducible-slicer-crash-on-attempted-tab-completion-on-nightly-2020-01-08/10146/9 "2020-05-28T23:10:56Z")

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I just downloaded and installed the 2020-05-27 preview release, and I cannot reproduce this crash on the new release. I also can’t use the new release because it appears to not be compatible with extensions I rely on (SlicerJupyter, SegmentEditorExtraEffects, SlicerOpenCV), but at least this issue seems to have been resolved somehow, and I’ll look forward to when I can upgrade.

EDIT: It turns out the Extension Manager was incorrectly informing me that these extensions were not compatible, after a series of frustrating interactions with the Extension Manager ([https://discourse.slicer.org/t/problematic-behavior-of-the-extension-manager/10986](https://discourse.slicer.org/t/problematic-behavior-of-the-extension-manager/10986)), it told me that actually these extensions ARE compatible with the version I just installed, and I was able to install them. I did not restart immediately, and when I reopened the Extension Manager, it again told me that none of the extensions were compatible. However, when I restarted Slicer, they were all installed, so I think things are good.

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_[View the full topic](https://discourse.slicer.org/t/reproducible-slicer-crash-on-attempted-tab-completion-on-nightly-2020-01-08/10146)._