# Error message,help!

**URL:** <https://discourse.slicer.org/t/error-message-help/12659>\
**Category:** Support\
**Created:** [July 21, 2020, 1:01pm UTC](https://discourse.slicer.org/t/error-message-help/12659 "2020-07-21T13:01:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![wwx992881](https://avatars.discourse-cdn.com/v4/letter/w/ebca7d/32.png) [@wwx992881](https://discourse.slicer.org/u/wwx992881)\
**Post date:** [July 21, 2020, 1:01pm UTC](https://discourse.slicer.org/t/error-message-help/12659/1 "2020-07-21T13:01:06Z")

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Hi!  
when I try to Extract centerline,and I get two error message as follow?what happened?what shoule I do?Thanks!!!  
 ![微信图片_20200721210031](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/c/9c503d5275fc897eec2f8bb374624a435c1ca181.png)

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**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:** [July 21, 2020, 5:35pm UTC](https://discourse.slicer.org/t/error-message-help/12659/2 "2020-07-21T17:35:42Z")

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That message means you ran out of memory. If you search the forum there are many related threads with suggestions, such as this one:

> [@Centerline computation failed](https://discourse.slicer.org/t/centerline-computation-failed/11981):
>
> Hello Everyone, I’ve been trying to compute centerlines for [this](https://github.com/DeepaMahm/misc/blob/master/Segmentation4.seg.nrrd) geometry using VMTK extension. However, I couldn’t successfully obtain centerlines. Even the networkExtraction failed when I tried to use the stl file of the same geometry reader = vmtkscripts.vmtkSurfaceReader() reader.InputFileName = ‘input.stl’ reader.Execute() # network extraction networkExtraction = vmtkscripts.vmtkNetworkExtraction() networkExtraction.Surface = reader.Surface networkExtraction.Execute() Could someon…

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 23, 2020, 2:02am UTC](https://discourse.slicer.org/t/error-message-help/12659/3 "2020-07-23T02:02:28Z")

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You can also try the latest VMTK in latest Slicer Preview Release, as we’ve made lots of improvements recently, including reducing memory usage.