# MarkupsToModel generic error warning for surface generation

**URL:** https://discourse.slicer.org/t/markupstomodel-generic-error-warning-for-surface-generation/32071
**Category:** Support
**Created:** [October 6, 2023, 2:50pm UTC](https://discourse.slicer.org/t/markupstomodel-generic-error-warning-for-surface-generation/32071 "2023-10-06T14:50:55Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![helenawill95](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/helenawill95/32/2650_2.png) [@helenawill95](https://discourse.slicer.org/u/helenawill95)
#### Post date: [October 6, 2023, 2:50pm UTC](https://discourse.slicer.org/t/markupstomodel-generic-error-warning-for-surface-generation/32071/1 "2023-10-06T14:50:55Z")

</div>

I’m currently having a generic warning using MarkUpsToModel to produce a model from fiducial nodes. I have this error (but can’t find the source of the problem):

```auto
[VTK] Generic Warning: In D:\D\S\S-0-E-b\MarkupsToModel\MarkupsToModel\Logic\vtkSlicerMarkupsToModelClosedSurfaceGeneration.cxx, line 311

[VTK] Extent ranges not provided in order largest to smallest. Unexpected results may occur.

```