# Error while loading a .med file - MEDfieldComputingStepInfo

**URL:** https://discourse.paraview.org/t/error-while-loading-a-med-file-medfieldcomputingstepinfo/14701
**Category:** ParaView Support
**Created:** [May 23, 2024, 12:48pm UTC](https://discourse.paraview.org/t/error-while-loading-a-med-file-medfieldcomputingstepinfo/14701 "2024-05-23T12:48:01Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Philippe\_Merle](https://discourse.paraview.org/user_avatar/discourse.paraview.org/philippe_merle/32/14479_2.png) [@Philippe\_Merle](https://discourse.paraview.org/u/Philippe_Merle)
#### Post date: [May 23, 2024, 12:48pm UTC](https://discourse.paraview.org/t/error-while-loading-a-med-file-medfieldcomputingstepinfo/14701/1 "2024-05-23T12:48:01Z")

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Hi all,

I’m trying to load a \*.med file.  
This file has been generated via library h5py in python.  
I activate the MEDReader from Plugins of Paraview to allow Paraview to load this med file.

Unfortunately, i’ve got an error when i try to load this file, and i can’t understand why it’s not working.

> /builds/gitlab-kitware-sciviz-ci/build/superbuild/medfile/src/src/hdfi/\_\_MEDobjectGetName.c [61] : Erreur d’exploration du groupe  
> /builds/gitlab-kitware-sciviz-ci/build/superbuild/medfile/src/src/hdfi/\_\_MEDobjectGetName.c [61] : /CHA/ACCE\_001  
> /builds/gitlab-kitware-sciviz-ci/build/superbuild/medfile/src/src/ci/\_MEDfieldComputingStepInfo31.c [78] : Erreur d’accès du groupe  
> /builds/gitlab-kitware-sciviz-ci/build/superbuild/medfile/src/src/ci/\_MEDfieldComputingStepInfo31.c [78] : /CHA/ACCE\_001  
> /builds/gitlab-kitware-sciviz-ci/build/superbuild/medfile/src/src/ci/\_MEDfieldComputingStepInfo31.c [78] : \_num = 0  
> ( 13.941s) [paraview] vtkOutputWindow.cxx:67 ERR| Exception has been thrown in vtkMEDReader::RequestInformation : Return code of MEDFile call “MEDfieldComputingStepInfo” is not 0 as expected ! ( Return code was -518 at /builds/gitlab-kitware-sciviz-ci/build/superbuild/medcoupling/src/src/MEDLoader/MEDFileFieldMultiTS.cxx:524 )  
> ( 13.944s) [paraview] vtkExecutive.cxx:729 ERR| vtkPVCompositeDataPipeline (0x78bb7e0): Algorithm vtkFileSeriesGroupReader (0x7af19c0) returned failure for request: vtkInformation (0x78eca70)  
> Debug: Off  
> Modified Time: 571521  
> Reference Count: 1  
> Registered Events: (none)  
> Request: REQUEST\_INFORMATION  
> ALGORITHM\_AFTER\_FORWARD: 1  
> FORWARD\_DIRECTION: 0

It seems that “MEDfieldComputingStepInfo” is not well set.  
I don’t understand what is the problem here.  
If it’s the attributes attached to the field /CHA/ACCE\_001/ or the step names.

I’ve a file here after which produce this error with Paraview (ParaView-5.12.0-RC1-MPI-Linux-Python3.10-x86\_64) : [test\_FACES.med](https://discourse.paraview.org/uploads/short-url/vbgmUAbgaAoNy6wfDarwvyfft5K.med) (207.4 KB)

Is anyone has a clue to help me about this error ?

Regards

Philippe

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<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 23, 2024, 1:17pm UTC](https://discourse.paraview.org/t/error-while-loading-a-med-file-medfieldcomputingstepinfo/14701/2 "2024-05-23T13:17:19Z")

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I’m afraid the MEDReader plugin is maintained by the SALOME team, we only package it in the binary release.

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### Author: ![Philippe\_Merle](https://discourse.paraview.org/user_avatar/discourse.paraview.org/philippe_merle/32/14479_2.png) [@Philippe\_Merle](https://discourse.paraview.org/u/Philippe_Merle)
#### Post date: [May 23, 2024, 1:47pm UTC](https://discourse.paraview.org/t/error-while-loading-a-med-file-medfieldcomputingstepinfo/14701/3 "2024-05-23T13:47:22Z")

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Hi,

Ok thanks for the reply.  
I will forward my problem on the salome support channel.

Best regards

Philippe