# Trace not working, Paraview 5.7.0, Ubuntu 20.04.3

**URL:** https://discourse.paraview.org/t/trace-not-working-paraview-5-7-0-ubuntu-20-04-3/8455
**Category:** ParaView Support
**Created:** [November 22, 2021, 4:43pm UTC](https://discourse.paraview.org/t/trace-not-working-paraview-5-7-0-ubuntu-20-04-3/8455 "2021-11-22T16:43:02Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![sdcycling](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/65b543/32.png) [@sdcycling](https://discourse.paraview.org/u/sdcycling)
#### Post date: [November 22, 2021, 4:43pm UTC](https://discourse.paraview.org/t/trace-not-working-paraview-5-7-0-ubuntu-20-04-3/8455/1 "2021-11-22T16:43:02Z")

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Hello, When I try to start a trace, I get the following errors:

```auto
ERROR: In /build/paraview-vlxewD/paraview-5.7.0/ParaViewCore/ServerManager/Core/vtkSMTrace.cxx, line 76
vtkSMTrace (0x555764841a00): Failed to import paraview.smtrace module.

Generic Warning: In /build/paraview-vlxewD/paraview-5.7.0/ParaViewCore/ServerManager/Core/vtkSMTrace.cxx, line 162
Trace not started since required Python modules are missing.

```

What can I do to start the trace tool?

Thank you.

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<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [November 23, 2021, 9:33am UTC](https://discourse.paraview.org/t/trace-not-working-paraview-5-7-0-ubuntu-20-04-3/8455/2 "2021-11-23T09:33:21Z")

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please try with the last binary release: [https://www.paraview.org/download/](https://www.paraview.org/download/)

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<div class="post-metadata">

### Author: ![sdcycling](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/65b543/32.png) [@sdcycling](https://discourse.paraview.org/u/sdcycling)
#### Post date: [November 23, 2021, 2:22pm UTC](https://discourse.paraview.org/t/trace-not-working-paraview-5-7-0-ubuntu-20-04-3/8455/3 "2021-11-23T14:22:12Z")

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I’ll try a newer release. If it works, I will need a remote server to install the same release because I would like to run Paraview in client/server mode. Thank you, Doug.