# Can not launch nighty build in ubuntu
**URL:** https://discourse.slicer.org/t/can-not-launch-nighty-build-in-ubuntu/14235
**Category:** Support
**Tags:** build
**Created:** [October 25, 2020, 6:48am UTC](https://discourse.slicer.org/t/can-not-launch-nighty-build-in-ubuntu/14235 "2020-10-25T06:48:45Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ragwing\_mmh](https://discourse.slicer.org/u/ragwing_mmh)
#### Post date: [October 25, 2020, 6:48am UTC](https://discourse.slicer.org/t/can-not-launch-nighty-build-in-ubuntu/14235/1 "2020-10-25T06:48:45Z")
Operating system: Ubuntu 18.04
Slicer version: 4.13.0
Expected behavior: Start 3D slicer nighty build
Actual behavior: not launch
Detail:
I have already run 3D slicer stable version(4.11) successfully in ubuntu device
Otherwisely, after download the nighty build(4.13) and run it in same machine, it only shows a error window
After closing the error window, double-click the slicer application again but nothing happen
Dose it mean I can only choose stable or nighty version in one device at same time?
Or Could I install both versions in same ubuntu devices?
Thank you for everything
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [October 25, 2020, 12:45pm UTC](https://discourse.slicer.org/t/can-not-launch-nighty-build-in-ubuntu/14235/2 "2020-10-25T12:45:07Z")
Each installed Slicer package are completely independent except they share a common Slicer.ini application settings. So, the most likely way of your not-yet-stable Slicer-4.13 could interfere with the latest stable is through this application settings file. Delete [Slicer.ini](https://slicer.readthedocs.io/en/latest/user_guide/settings.html?highlight=slicer.ini#settings-file-location) and see if it solves the issue.
Slicer preview releases are expected to be stabilized in the coming weeks.