# SlicerRT built from source cannot start

**URL:** <https://discourse.slicer.org/t/slicerrt-built-from-source-cannot-start/43792>\
**Category:** Support\
**Tags:** build\
**Created:** [July 21, 2025, 8:52am UTC](https://discourse.slicer.org/t/slicerrt-built-from-source-cannot-start/43792 "2025-07-21T08:52:11Z")\
**Posts on this page:** 3\
**Page:** 3

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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:** [August 7, 2025, 1:07pm UTC](https://discourse.slicer.org/t/slicerrt-built-from-source-cannot-start/43792/41 "2025-08-07T13:07:12Z")

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OK let’s switch to that one. The function I chose does exactly what the old `Triangulate` function did, but this one may be some improved version of it. I’ll test it a bit though. Please go ahead and close the PR.

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**Author:** ![chir.set](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/chir.set/32/66982_2.png) [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Post date:** [August 7, 2025, 1:54pm UTC](https://discourse.slicer.org/t/slicerrt-built-from-source-cannot-start/43792/42 "2025-08-07T13:54:33Z")

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I suggested that because it was a quick solution for me while building VMTK. It’s in a class that’s probably not used in my workflows, so I can’t say which one is the right fix. ‘_It builds, I don’t need that class, let’s go_’, that was it.

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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:** [August 7, 2025, 2:06pm UTC](https://discourse.slicer.org/t/slicerrt-built-from-source-cannot-start/43792/43 "2025-08-07T14:06:57Z")

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Thanks a lot for the information! I’ll leave it like it is then, to keep the functionality the same. I just tested DICOM-RT import and it seems to work fine with `EarCutTriangulation`.

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