# Surface LIC: Attempt to get an input array for an index that has not been specified

**URL:** https://discourse.paraview.org/t/surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/6180
**Category:** ParaView Support
**Created:** [January 7, 2021, 9:11am UTC](https://discourse.paraview.org/t/surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/6180 "2021-01-07T09:11:52Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![mariavd](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/m/b4bc9f/32.png) [@mariavd](https://discourse.paraview.org/u/mariavd)
#### Post date: [January 7, 2021, 9:11am UTC](https://discourse.paraview.org/t/surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/6180/1 "2021-01-07T09:11:52Z")

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Hello,

I have been using Paraview for years for our visualisations and always loaded my vti file, apply a Slice, choose the colour to be defined by the array in our vti file and set it to SurfaceLIC representation. Today I downloaded Paraview 5.9 RC3 for Linux but I get the error:

> ERROR: In /builds/gitlab-kitware-sciviz-ci/build/superbuild/paraview/src/VTK/Common/ExecutionModel/vtkAlgorithm.cxx, line 484  
> vtkCompositeSurfaceLICMapper (0x1a0b6c10): Attempt to get an input array for an index that has not been specified

Have there been any changes to the implementation that require us to change our vti files?

Best regards,  
Maria

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### Author: ![Roger1198](https://discourse.paraview.org/user_avatar/discourse.paraview.org/roger1198/32/14381_2.png) [@Roger1198](https://discourse.paraview.org/u/Roger1198)
#### Post date: [May 11, 2024, 1:37pm UTC](https://discourse.paraview.org/t/surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/6180/2 "2024-05-11T13:37:46Z")

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Hi, I know it’s been a while, but have you figured a workaround the above issue?

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### Author: ![dcthomp](https://discourse.paraview.org/user_avatar/discourse.paraview.org/dcthomp/32/20_2.png) [@dcthomp](https://discourse.paraview.org/u/dcthomp)
#### Post date: [May 11, 2024, 5:10pm UTC](https://discourse.paraview.org/t/surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/6180/3 "2024-05-11T17:10:50Z")

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I don’t know of any work on this. It almost sounds like you are trying to use a scalar field for the convolution (which needs a 3-component vector).

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [May 13, 2024, 11:03am UTC](https://discourse.paraview.org/t/surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/6180/4 "2024-05-13T11:03:46Z")

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If possible, please share an example file that exhibits the problem.

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### Author: ![Roger1198](https://discourse.paraview.org/user_avatar/discourse.paraview.org/roger1198/32/14381_2.png) [@Roger1198](https://discourse.paraview.org/u/Roger1198)
#### Post date: [May 21, 2024, 4:10pm UTC](https://discourse.paraview.org/t/surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/6180/5 "2024-05-21T16:10:52Z")

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Sorry about the tardy reply. I managed to solve the issue with a slice through the domain, and now can visualize the Surface LIC. The issue I had was with Surface LIC not working on all the surfaces of the domain (walls and periodic faces).