# Errors in running code(Segmentation fault(core dumped) and vtkPolyDataMapper)

**URL:** https://discourse.vtk.org/t/errors-in-running-code-segmentation-fault-core-dumped-and-vtkpolydatamapper/2146
**Category:** Support
**Created:** [November 25, 2019, 9:10pm UTC](https://discourse.vtk.org/t/errors-in-running-code-segmentation-fault-core-dumped-and-vtkpolydatamapper/2146 "2019-11-25T21:10:45Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![banikr](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/b9bd4f/32.png) [@banikr](https://discourse.vtk.org/u/banikr)
#### Post date: [November 25, 2019, 9:10pm UTC](https://discourse.vtk.org/t/errors-in-running-code-segmentation-fault-core-dumped-and-vtkpolydatamapper/2146/1 "2019-11-25T21:10:45Z")

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I am getting this strange error when I am running my VTK codes(C++)

```
    banikr@banikr:~/VTK/VTKTract1-build$ ./VTKTract1 
    Here@@@@@ 
    2019-11-25 15:08:43.910 ( 0.243s) [554C4740] vtkPolyDataMapper.cxx:28 WARN| Error: no override found for 'vtkPolyDataMapper'.
    Segmentation fault (core dumped)

```

Can anyone explain the reason?

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### Author: ![allison.vacanti](https://discourse.vtk.org/user_avatar/discourse.vtk.org/allison.vacanti/32/679_2.png) [@allison.vacanti](https://discourse.vtk.org/u/allison.vacanti)
#### Post date: [November 26, 2019, 12:36am UTC](https://discourse.vtk.org/t/errors-in-running-code-segmentation-fault-core-dumped-and-vtkpolydatamapper/2146/2 "2019-11-26T00:36:45Z")

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You need to link with a rendering backend to use `vtkPolyDataMapper`. Most likely, you want to link with the `vtkRenderingOpenGL2` library.

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### Author: ![lorensen](https://discourse.vtk.org/user_avatar/discourse.vtk.org/lorensen/32/20_2.png) [@lorensen](https://discourse.vtk.org/u/lorensen)
#### Post date: [November 26, 2019, 1:49am UTC](https://discourse.vtk.org/t/errors-in-running-code-segmentation-fault-core-dumped-and-vtkpolydatamapper/2146/3 "2019-11-26T01:49:58Z")

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Maybe that error message should be more specific.

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### Author: ![banikr](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/b9bd4f/32.png) [@banikr](https://discourse.vtk.org/u/banikr)
#### Post date: [November 26, 2019, 2:35am UTC](https://discourse.vtk.org/t/errors-in-running-code-segmentation-fault-core-dumped-and-vtkpolydatamapper/2146/4 "2019-11-26T02:35:08Z")

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Hey,  
I just solved this issue by reinstalling vtk version 8.2.0 with CMake 3.10.

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### Author: ![ben.boeckel](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/ea5d25/32.png) [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)
#### Post date: [November 26, 2019, 11:20am UTC](https://discourse.vtk.org/t/errors-in-running-code-segmentation-fault-core-dumped-and-vtkpolydatamapper/2146/5 "2019-11-26T11:20:15Z")

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> [@lorensen](#):
>
> Maybe that error message should be more specific.

Not sure how it could without the base classes knowing about “all” implementations of them across the source tree.