# Segmentation fault on Ubuntu 18.04 with multiple versions
**URL:** https://discourse.paraview.org/t/segmentation-fault-on-ubuntu-18-04-with-multiple-versions/5682
**Category:** ParaView Support
**Created:** [October 29, 2020, 3:43pm UTC](https://discourse.paraview.org/t/segmentation-fault-on-ubuntu-18-04-with-multiple-versions/5682 "2020-10-29T15:43:24Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@langolyers](https://discourse.paraview.org/u/langolyers)
#### Post date: [October 29, 2020, 3:43pm UTC](https://discourse.paraview.org/t/segmentation-fault-on-ubuntu-18-04-with-multiple-versions/5682/1 "2020-10-29T15:43:24Z")
Hi everyone,
Couldn’t find a solution to my problem on any of the other posts with segmentation fault errors, so maybe someone can help me.
I’m trying to run Paraview on Ubuntu 18.04 and I get Segmentation fault (core dumped) on versions 5.6.0, 5.6.1, 5.6.2, 5.7.0 and 5.8.1. However, when running with sudo, all of them work properly.
I’ve also tried version 5.2 and it works without sudo.
Thank you for the help.
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### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [October 30, 2020, 12:07pm UTC](https://discourse.paraview.org/t/segmentation-fault-on-ubuntu-18-04-with-multiple-versions/5682/2 "2020-10-30T12:07:08Z")
Do you have a backtrace from the core dump that could help point us towards where the problem might exist?
`gdb paraview` and then `run` to run it. Once it crashes, `backtrace` should get interesting information. There’s really only a chance of 5.8.1 getting any fixes at this point, though 5.9.0 is due to start its release process soon, so testing out the [nightlies](https://www.paraview.org/download/) would be the most helpful.
My hunch would be that you have some `LD_LIBRARY_PATH` interfering. What is the output of `echo $LD_LIBRARY_PATH` and `LD_DEBUG=libs paraview`?