# can not create midbrain surface mesh

**URL:** <https://discourse.slicer.org/t/can-not-create-midbrain-surface-mesh/13157>\
**Category:** Support\
**Created:** [August 25, 2020, 1:20pm UTC](https://discourse.slicer.org/t/can-not-create-midbrain-surface-mesh/13157 "2020-08-25T13:20:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jacqueline\_Zhang](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jacqueline_zhang/32/4101_2.png) [@Jacqueline\_Zhang](https://discourse.slicer.org/u/Jacqueline_Zhang)\
**Post date:** [August 25, 2020, 1:20pm UTC](https://discourse.slicer.org/t/can-not-create-midbrain-surface-mesh/13157/1 "2020-08-25T13:20:56Z")

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Operating system: WIN 10  
Slicer version: 4.8.1  
Expected behavior: Create a mesh from freesurfer segmented data  
Actual behavior: error message: Model Maker standard error:

Model scene file doesn’t exist yet: C:/Users/JACQUE~1/AppData/Local/Temp/Slicer/BHDDG\_AAAAABAIFDCCJBBA.mrml  
Error: no model hierarchy node at ID “vtkMRMLModelHierarchyNode1”, creating one  
ERROR: cannot open input volume file C:/Users/JACQUE~1/AppData/Local/Temp/Slicer/BHDDG\_vtkMRMLLabelMapVolumeNodeB.nrrd

I tried to use the 3D slicer to create a surface mesh of the midbrain. The label data is from the freesufer. and use the model maker function, the input model is the label map. and I got the error message as followed. Model Maker standard error:

Model scene file doesn’t exist yet: C:/Users/JACQUE~1/AppData/Local/Temp/Slicer/BHDDG\_AAAAABAIFDCCJBBA.mrml  
Error: no model hierarchy node at ID “vtkMRMLModelHierarchyNode1”, creating one  
ERROR: cannot open input volume file C:/Users/JACQUE~1/AppData/Local/Temp/Slicer/BHDDG\_vtkMRMLLabelMapVolumeNodeB.nrrd

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<div class="post-metadata">

**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [August 25, 2020, 1:33pm UTC](https://discourse.slicer.org/t/can-not-create-midbrain-surface-mesh/13157/2 "2020-08-25T13:33:33Z")

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Hi -

4.8.1 is very old and we don’t support it anymore. Try the latest preview version from [download.slicer.org](http://download.slicer.org) and the [SlicerFreeSurfer](https://github.com/PerkLab/SlicerFreeSurfer) extension.