# paraview trace not start

**URL:** https://discourse.paraview.org/t/paraview-trace-not-start/6135
**Category:** ParaView Support
**Created:** [December 28, 2020, 11:32pm UTC](https://discourse.paraview.org/t/paraview-trace-not-start/6135 "2020-12-28T23:32:23Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Filipeipei](https://discourse.paraview.org/user_avatar/discourse.paraview.org/filipeipei/32/5622_2.png) [@Filipeipei](https://discourse.paraview.org/u/Filipeipei)
#### Post date: [December 28, 2020, 11:32pm UTC](https://discourse.paraview.org/t/paraview-trace-not-start/6135/1 "2020-12-28T23:32:23Z")

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Hello, I have a problem when I try to start trace on ParaView:

ERROR: In …/Remoting/ServerManager/vtkSMTrace.cxx, line 76  
vtkSMTrace (0x55729dff7040): Failed to import paraview.smtrace module.  
Generic Warning: In …/Remoting/ServerManager/vtkSMTrace.cxx, line 162

Trace not started since required Python modules are missing.

Anyone could help me please?  
thanks

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### 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: [January 4, 2021, 10:13am UTC](https://discourse.paraview.org/t/paraview-trace-not-start/6135/2 "2021-01-04T10:13:18Z")

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Which version, downloaded from where, of ParaView, are you using ?