# Trouble loading vff file

**URL:** <https://discourse.slicer.org/t/trouble-loading-vff-file/35608>\
**Category:** Support\
**Tags:** slicerrt\
**Created:** [April 19, 2024, 2:08am UTC](https://discourse.slicer.org/t/trouble-loading-vff-file/35608 "2024-04-19T02:08:43Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [April 22, 2024, 12:53pm UTC](https://discourse.slicer.org/t/trouble-loading-vff-file/35608/2 "2024-04-22T12:53:15Z")

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I think you use an old version of Slicer, because I fixed this error in January, see

> [@Unable to open vff file](https://discourse.slicer.org/t/unable-to-open-vff-file/34265):
>
> I have Slicer 5.6.1, but I’m unable to open the vff file despite having the SlicerRT extension installed. The following is the error log: LoadVffFile: The values for the origin must each be greater than or equal to 0. LoadVffFile: Incorrect parameters or required parameters that were not set, vff file failed to load. The required parameters are: rank, type, format, bits, bands, size, spacing, origin, rawsize, data scale, data offset, and title. Warning: In vtkSlicerVffFileReaderLogic.cxx, lin…

Please update to the latest version and try again. Let is know how it goes.

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