# I can't find any tools under segment editor. See the report bug below

**URL:** <https://discourse.slicer.org/t/i-cant-find-any-tools-under-segment-editor-see-the-report-bug-below/41913>\
**Category:** Support\
**Created:** [February 28, 2025, 7:59am UTC](https://discourse.slicer.org/t/i-cant-find-any-tools-under-segment-editor-see-the-report-bug-below/41913 "2025-02-28T07:59:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Alou\_Diakite](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/alou_diakite/32/66917_2.png) [@Alou\_Diakite](https://discourse.slicer.org/u/Alou_Diakite)\
**Post date:** [February 28, 2025, 7:59am UTC](https://discourse.slicer.org/t/i-cant-find-any-tools-under-segment-editor-see-the-report-bug-below/41913/1 "2025-02-28T07:59:25Z")

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[DEBUG][Qt] 28.02.2025 15:52:47 (unknown:0) - Switch to module: “SegmentEditor”  
[CRITICAL][Stream] 28.02.2025 15:52:47 (unknown:0) - Traceback (most recent call last):  
[CRITICAL][Stream] 28.02.2025 15:52:47 (unknown:0) - File “C:/Users/DELL/AppData/Local/slicer.org/Slicer 5.8.0/bin/…/lib/Slicer-5.8/qt-scripted-modules/SegmentEditor.py”, line 124, in enter  
[CRITICAL][Stream] 28.02.2025 15:52:47 (unknown:0) - self.selectParameterNode()  
[CRITICAL][Stream] 28.02.2025 15:52:47 (unknown:0) - File “C:/Users/DELL/AppData/Local/slicer.org/Slicer 5.8.0/bin/…/lib/Slicer-5.8/qt-scripted-modules/SegmentEditor.py”, line 87, in selectParameterNode  
[CRITICAL][Stream] 28.02.2025 15:52:47 (unknown:0) - segmentEditorNode.UnRegister(None)  
[CRITICAL][Stream] 28.02.2025 15:52:47 (unknown:0) - AttributeError: ‘vtkSlicerSegmentationsModuleMRMLPython.vtkMRMLSegm’ object has no attribute ‘UnRegister’

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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:** [February 28, 2025, 10:48am UTC](https://discourse.slicer.org/t/i-cant-find-any-tools-under-segment-editor-see-the-report-bug-below/41913/2 "2025-02-28T10:48:42Z")

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Did you build Slicer from source code? What is your operating system?

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**Author:** ![Alou\_Diakite](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/alou_diakite/32/66917_2.png) [@Alou\_Diakite](https://discourse.slicer.org/u/Alou_Diakite)\
**Post date:** [March 2, 2025, 7:06pm UTC](https://discourse.slicer.org/t/i-cant-find-any-tools-under-segment-editor-see-the-report-bug-below/41913/3 "2025-03-02T19:06:08Z")

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Hi, I am using a windows 11 and I installed the .exe file. The problem come up I installed the WMA extension. Without that extension, it works fine. Thank you