# Error in loading vtk Shader Program
**URL:** https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266
**Category:** ParaView Support
**Created:** [July 2, 2018, 8:20am UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266 "2018-07-02T08:20:19Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@olek\_warc](https://discourse.paraview.org/u/olek_warc)
#### Post date: [July 2, 2018, 8:20am UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/1 "2018-07-02T08:20:20Z")
Hello,
I am a new ParaView user and I noticed that whenever I try to load up a render view with Surface LIC display, an error code is showing up in the output window.
I am unsure as of what is causing the error, as the rendering seems to load up OK and LIC plot looks as expected.
Could you please have a look at the error message attached and advice on troubleshooting? As it seems to be graphics related, it might be worth mentioning that I am using a workstation with Nvidia Quadro K 2200 chip.
Kind regards and thank you for your help
Olek
[ParaView Error Message.txt](https://discourse.paraview.org/uploads/default/original/1X/8ad6b848ec646adee9907cc57ab7a9fda96879ec.txt) (25.8 KB)
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [July 16, 2018, 3:12pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/2 "2018-07-16T15:12:02Z")
Olek, could you post some step-by-step instructions for reproducing this error?
Doing the following does _not_ lead to the error you posted:
- Select Tools -\> Manage Plugins…
- Load SurfaceLIC
- Add **Wavelet** source
- Add **Gradient** filter
- Change to **Surface LIC** representation.
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### Author:  [@olek\_warc](https://discourse.paraview.org/u/olek_warc)
#### Post date: [July 16, 2018, 3:33pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/3 "2018-07-16T15:33:21Z")
Hello Cory,
Thank you for replying to this thread.
Steps to reproduce this error:
- Select Tools -\> Manage Plugins…
- Load SurfaceLIC
- Add Slice filter to exisitng source (volume mesh with calculate Velocity vector)
- Change to SurfaceLIC representation
- Change coloring to “U”.
As I mentioned the LIC plots show OK, although the error output message is concerning and annoyingly reproduces with every camera zomm / rotation / pan etc.
Thanks,
Olek
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [July 16, 2018, 6:37pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/4 "2018-07-16T18:37:40Z")
Hmm, I still can’t reproduce. Can you reproduce the error if you run `paraview -dr` (the `-dr` option disables any custom settings you may have)?
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [July 16, 2018, 6:40pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/5 "2018-07-16T18:40:37Z")
Oh, and which version of ParaView are you using?
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### Author:  [@olek\_warc](https://discourse.paraview.org/u/olek_warc)
#### Post date: [July 17, 2018, 7:40am UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/6 "2018-07-17T07:40:57Z")
So: both applying LIC to Wavelet source with Gradient filter and resetting settings to default (I am running on Windows so I used option Edit-\>Reset to default settings) and applying LIC to my source worked and did not yield any errors.
Any idea what custom setting could be causing an issue in the original case?
I am using ParaView 5.5.1 64-bit
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [July 17, 2018, 2:36pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/7 "2018-07-17T14:36:44Z")
Interesting. It’s hard to say which option may be interacting with Surface LIC negatively. Did you happen to back up your settings when choosing Edit-\>Reset? If so, mind sending me the backed up files? They should be under `C:/Users/USERNAME/AppData/Roaming` and have the extension `.bak`.
I would actually expect some of the options that default to on (depth peeling, FXAA) might be having an effect somehow, so it’s surprising that resetting to the default settings fixes things for you.
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### Author:  [@Saketh\_Bharadwaj](https://discourse.paraview.org/u/Saketh_Bharadwaj)
#### Post date: [November 18, 2018, 4:53pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/8 "2018-11-18T16:53:06Z")
Hello Cory,
I am also seeing the same error whenever I use surface LIC. I am using paraview 5.4.1.
initially,
When I load my case file and click “Apply”, I see an error message
[ERROR: In C:\bbd\2d618e80\build\superbuild\paraview\src\VTK\IO\EnSight\vtkEnSightGoldBinaryReader.cxx, line 2267
vtkEnSightGoldBinaryReader (0000023852A76A20): Unknown element type "coordinates "]. In the selection dropdown list I am seeing velocity as "velocity(“partial”). But everything after this looks as expected.
Later when I load surfaceLIC, I see the message [paraview error.txt](https://discourse.paraview.org/uploads/default/original/1X/298a8b2419dab14df6297cdaadff2b3da6bc0261.txt) (5.4 KB).
How can I fix this error?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [November 19, 2018, 1:41pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/9 "2018-11-19T13:41:49Z")
Hello Saketh,
Please create a new topic to post about your issue. You can add a link to this one in your own topic if you want.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [November 19, 2018, 1:42pm UTC](https://discourse.paraview.org/t/error-in-loading-vtk-shader-program/266/10 "2018-11-19T13:42:01Z")