# Error when I open a vtu file

**URL:** https://discourse.paraview.org/t/error-when-i-open-a-vtu-file/15511
**Category:** ParaView Support
**Tags:** vtk
**Created:** [October 8, 2024, 4:26am UTC](https://discourse.paraview.org/t/error-when-i-open-a-vtu-file/15511 "2024-10-08T04:26:00Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Giuseppe\_Sammarro](https://discourse.paraview.org/user_avatar/discourse.paraview.org/giuseppe_sammarro/32/14756_2.png) [@Giuseppe\_Sammarro](https://discourse.paraview.org/u/Giuseppe_Sammarro)
#### Post date: [October 8, 2024, 4:26am UTC](https://discourse.paraview.org/t/error-when-i-open-a-vtu-file/15511/1 "2024-10-08T04:26:00Z")

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When i try to open a vtu file the program gives me this error:

vtkXMLParser.cxx:375 ERR| vtkXMLDataParser (0x5583f50fd8a0): Error parsing XML in stream at line 20, column 0, byte index 855: not well-formed (invalid token)  
( 27.990s) [paraview] vtkXMLReader.cxx:520 ERR| vtkXMLUnstructuredGridReader (0x5583f4ecefd0): Error parsing input file. ReadXMLInformation aborting.

I don’t think that the problem is the file, because paraview doesn’t even open the files that i was working a couple of month ago. to be sure I uplode also the file  
[heat\_0.vtu](https://discourse.paraview.org/uploads/short-url/zu7SGdnZvWGAk8TkxZ6mUxfVyIo.vtu) (27.6 KB)

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### 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: [October 8, 2024, 7:57am UTC](https://discourse.paraview.org/t/error-when-i-open-a-vtu-file/15511/2 "2024-10-08T07:57:47Z")

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Hi @Giuseppe_Sammarro

Please look at this thread:

> [@Unable to read VTU file using OpenDataFile with pvpython](https://discourse.paraview.org/t/unable-to-read-vtu-file-using-opendatafile-with-pvpython/14928/2):
>
> Hi @Leflak Without the data it is not realy possible to help you, so you may want to reach out to Kitware to set up a NDA. Best

Maybe I should create a FAQ for this one.

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### Author: ![Giuseppe\_Sammarro](https://discourse.paraview.org/user_avatar/discourse.paraview.org/giuseppe_sammarro/32/14756_2.png) [@Giuseppe\_Sammarro](https://discourse.paraview.org/u/Giuseppe_Sammarro)
#### Post date: [October 8, 2024, 4:21pm UTC](https://discourse.paraview.org/t/error-when-i-open-a-vtu-file/15511/3 "2024-10-08T16:21:52Z")

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Thank you, I’ve installed the binary version and now it works.