# Internal error occurred

**URL:** <https://discourse.slicer.org/t/internal-error-occurred/9396>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [December 5, 2019, 11:28am UTC](https://discourse.slicer.org/t/internal-error-occurred/9396 "2019-12-05T11:28:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![prorai](https://avatars.discourse-cdn.com/v4/letter/p/e8c25b/32.png) [@prorai](https://discourse.slicer.org/u/prorai)\
**Post date:** [December 5, 2019, 11:28am UTC](https://discourse.slicer.org/t/internal-error-occurred/9396/1 "2019-12-05T11:28:11Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/0/a00f0412f04aac42d8a167cacca9de74a851c130.png)

why this happen?

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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:** [December 5, 2019, 12:25pm UTC](https://discourse.slicer.org/t/internal-error-occurred/9396/2 "2019-12-05T12:25:01Z")

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Are you able to define a set of steps that lead to this error using public data? What were you working on when this happened?