# Error executing version Slicer-4.11.0-2020-06-01-linux-amd64.tar.gz on Ubuntu 16.04

**URL:** <https://discourse.slicer.org/t/error-executing-version-slicer-4-11-0-2020-06-01-linux-amd64-tar-gz-on-ubuntu-16-04/11834>\
**Category:** Support\
**Tags:** qt\
**Created:** [June 2, 2020, 7:00pm UTC](https://discourse.slicer.org/t/error-executing-version-slicer-4-11-0-2020-06-01-linux-amd64-tar-gz-on-ubuntu-16-04/11834 "2020-06-02T19:00:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Julio\_Torres](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/julio_torres/32/7020_2.png) [@Julio\_Torres](https://discourse.slicer.org/u/Julio_Torres)\
**Post date:** [June 2, 2020, 7:00pm UTC](https://discourse.slicer.org/t/error-executing-version-slicer-4-11-0-2020-06-01-linux-amd64-tar-gz-on-ubuntu-16-04/11834/1 "2020-06-02T19:00:06Z")

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Operating system:Ubuntu LTS 16.04  
Slicer version: 4.11.0-2020-06-01  
Expected behavior: run the executable  
Actual behavior: I does not execute and appear the following message:

qt.qpa.plugin: Could not load the Qt platform plugin “xcb” in “” even though it was found.  
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: xcb.

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**Author:** ![Sam\_Horvath](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sam_horvath/32/3092_2.png) [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Post date:** [June 2, 2020, 7:05pm UTC](https://discourse.slicer.org/t/error-executing-version-slicer-4-11-0-2020-06-01-linux-amd64-tar-gz-on-ubuntu-16-04/11834/2 "2020-06-02T19:05:25Z")

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Hi: We are in the process of updating Qt on the factory systems, so the nightly build is a bit unstable right now. Please try this older version: [http://slicer.kitware.com/midas3/api/rest?method=midas.bitstream.download&name=Slicer-4.11.0-2020-05-25-linux-amd64.tar.gz&checksum=c6d78202a7ad02bd1a380b183390f820](http://slicer.kitware.com/midas3/api/rest?method=midas.bitstream.download&name=Slicer-4.11.0-2020-05-25-linux-amd64.tar.gz&checksum=c6d78202a7ad02bd1a380b183390f820)