# VTKHDF: 读入FieldData中的StringArray报错
**URL:** https://discourse.vtk.org/t/vtkhdf-fielddata-stringarray/16154
**Category:** Development
**Tags:** file-formats
**Created:** [November 24, 2025, 7:07am UTC](https://discourse.vtk.org/t/vtkhdf-fielddata-stringarray/16154 "2025-11-24T07:07:19Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@jie\_baoer](https://discourse.vtk.org/u/jie_baoer)
#### Post date: [November 24, 2025, 7:07am UTC](https://discourse.vtk.org/t/vtkhdf-fielddata-stringarray/16154/1 "2025-11-24T07:07:19Z")
When I was testing vtkhdf, I found that when the read StringArray was n rows and multiple columns, an error would be prompted
ERROR: In vtkHDFUtilities.cxx, line 558
(nullptr): Dataset: ndims: 2 greater than expected ndims: 0 plus one.
ERROR: In vtkHDFUtilities.cxx, line 602
(nullptr): Error H5Dread
[simple\_unstructured1.vtkhdf](https://discourse.vtk.org/uploads/short-url/yF421wUbJ0xgg5wUEYAy1JLzP1f.vtkhdf) (4.0 MB)
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### Author:  [@lgivord](https://discourse.vtk.org/u/lgivord)
#### Post date: [November 24, 2025, 8:32am UTC](https://discourse.vtk.org/t/vtkhdf-fielddata-stringarray/16154/2 "2025-11-24T08:32:47Z")
Hello @jie_baoer,
Indeed string array is not well supported by the vtkHDFReader/vtkHDFWriter, there is an issue about that here : [https://gitlab.kitware.com/vtk/vtk/-/issues/19771](https://gitlab.kitware.com/vtk/vtk/-/issues/19771). We need to fix that at some point.
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### Author:  [@jie\_baoer](https://discourse.vtk.org/u/jie_baoer)
#### Post date: [November 24, 2025, 8:37am UTC](https://discourse.vtk.org/t/vtkhdf-fielddata-stringarray/16154/3 "2025-11-24T08:37:57Z")
Thanks for the info! I’ve noted the limitation and will use an alternative method to handle string data.
Looking forward to the fix in a future release.