# Convert a surface mesh to a volumetric mesh in 3D Slicer

**URL:** <https://discourse.slicer.org/t/convert-a-surface-mesh-to-a-volumetric-mesh-in-3d-slicer/1416>\
**Category:** Support\
**Created:** [November 9, 2017, 11:56am UTC](https://discourse.slicer.org/t/convert-a-surface-mesh-to-a-volumetric-mesh-in-3d-slicer/1416 "2017-11-09T11:56:22Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![Saima](https://avatars.discourse-cdn.com/v4/letter/s/9d8465/32.png) [@Saima](https://discourse.slicer.org/u/Saima)\
**Post date:** [August 1, 2019, 7:40am UTC](https://discourse.slicer.org/t/convert-a-surface-mesh-to-a-volumetric-mesh-in-3d-slicer/1416/15 "2019-08-01T07:40:24Z")

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Dear Andras,  
I am trying to convert .vtk file into inp file using meshio.

the vtk file is not read by meshio. it gives error  
assert section == “FIELD”, “Unknown section ‘{}’.”.format(section)

AssertionError: Unknown section ’

how to resolve this error. please help.

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