# Error when creating sequence of markups lines

**URL:** <https://discourse.slicer.org/t/error-when-creating-sequence-of-markups-lines/10764>\
**Category:** Support\
**Created:** [March 20, 2020, 3:17pm UTC](https://discourse.slicer.org/t/error-when-creating-sequence-of-markups-lines/10764 "2020-03-20T15:17:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jainey](https://avatars.discourse-cdn.com/v4/letter/j/a88e57/32.png) [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Post date:** [March 20, 2020, 3:17pm UTC](https://discourse.slicer.org/t/error-when-creating-sequence-of-markups-lines/10764/1 "2020-03-20T15:17:53Z")

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Slicer 4.11  
Mac OS

Trying to create a sequence (using sequences module) of transform hardened marks ups with lines.  
Slicer crashes  
Works fine with angles (If I draw an angle on the volume and create multiple angles , harden them on the volume and create a sequence, it plays fine in the browser, Also ok with fidu markers. Moment I select line and do the same slicer crashes  
Report as follows- I m zero to programming and python

Thanks a lot  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Session start time …: 2020-03-21 02:10:49  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Slicer version …: 4.11.0-2019-12-06 (revision 28668) macosx-amd64 - installed release  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Operating system …: Mac OS X / 10.15.1 / 19B88 - 64-bit  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Memory …: 16384 MB physical, 17408 MB virtual  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - CPU …: GenuineIntel Intel® Core™ i9-9880H CPU @ 2.30GHz, 8 cores, 16 logical processors  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - VTK configuration …: OpenGL2 rendering, Sequential threading  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Qt configuration …: version 5.10.0, with SSL, requested OpenGL 3.2 (core profile)  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Developer mode enabled …: no  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Prefer executable CLI …: yes  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Application path …: /Applications/Slicer 3.app/Contents/MacOS  
[DEBUG][Qt] 21.03.2020 02:10:49 [] (unknown:0) - Additional module paths …: /Applications/Slicer 3.app/Contents/Extensions-28668/Sequences/lib/Slicer-4.11/qt-loadable-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/Sequences/lib/Slicer-4.11/qt-scripted-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/SlicerElastix/lib/Slicer-4.11/qt-scripted-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/ModelToModelDistance/lib/Slicer-4.11/cli-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/Q3DC/lib/Slicer-4.11/qt-scripted-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/CMFreg/lib/Slicer-4.11/cli-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/CMFreg/lib/Slicer-4.11/qt-scripted-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/ShapePopulationViewer/lib/Slicer-4.11/qt-loadable-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/MarkupsToModel/lib/Slicer-4.11/qt-loadable-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/DCMQI/lib/Slicer-4.11/cli-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/SlicerIGT/lib/Slicer-4.11/qt-loadable-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/SlicerIGT/lib/Slicer-4.11/qt-scripted-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/SlicerIGSIO/lib/Slicer-4.11/qt-loadable-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/SlicerOpenIGTLink/lib/Slicer-4.11/qt-loadable-modules, /Applications/Slicer 3.app/Contents/Extensions-28668/SlicerOpenIGTLink/lib/Slicer-4.11/qt-scripted-modules  
[DEBUG][Python] 21.03.2020 02:10:50 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/SubjectHierarchyPlugins/AbstractScriptedSubjectHierarchyPlugin.py:36) - Scripted subject hierarchy plugin registered: Annotations  
[DEBUG][Python] 21.03.2020 02:10:53 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/SubjectHierarchyPlugins/AbstractScriptedSubjectHierarchyPlugin.py:36) - Scripted subject hierarchy plugin registered: SegmentEditor  
[DEBUG][Python] 21.03.2020 02:10:53 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/SubjectHierarchyPlugins/AbstractScriptedSubjectHierarchyPlugin.py:36) - Scripted subject hierarchy plugin registered: SegmentStatistics  
[DEBUG][Qt] 21.03.2020 02:10:54 [] (unknown:0) - Switch to module: “Welcome”  
[DEBUG][Python] 21.03.2020 02:11:00 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/DICOMLib/DICOMProcesses.py:171) - Starting storescp process  
[DEBUG][Python] 21.03.2020 02:11:00 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/DICOMLib/DICOMProcesses.py:68) - ('Starting /Applications/Slicer 3.app/Contents/bin/storescp with ', [‘11112’, ‘–accept-all’, ‘–output-directory’, ‘/Users/mel/Documents/sl/incoming’, ‘–exec-sync’, ‘–exec-on-reception’, ‘/Applications/Slicer 3.app/Contents/bin/dcmdump --load-short --print-short --print-filename --search PatientName “/Users/mel/Documents/sl/incoming/#f”’])  
[DEBUG][Python] 21.03.2020 02:11:00 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/DICOMLib/DICOMProcesses.py:72) - Process /Applications/Slicer 3.app/Contents/bin/storescp now in state Starting  
[INFO][Python] 21.03.2020 02:11:00 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/DICOM.py:166) - DICOM C-Store SCP service started at port 11112  
[INFO][Stream] 21.03.2020 02:11:00 [] (unknown:0) - DICOM C-Store SCP service started at port 11112  
[DEBUG][Python] 21.03.2020 02:11:00 [Python] (/Applications/Slicer 3.app/Contents/lib/Slicer-4.11/qt-scripted-modules/DICOMLib/DICOMProcesses.py:72) - Process /Applications/Slicer 3.app/Contents/bin/storescp now in state Running

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<div class="post-metadata">

**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:** [March 22, 2020, 12:47am UTC](https://discourse.slicer.org/t/error-when-creating-sequence-of-markups-lines/10764/2 "2020-03-22T00:47:49Z")

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Thanks for reporting this. I could not reproduce the crash. Could you try on a new Slicer installation, only with Sequences extension installed? Could you give step-by-step instructions (which buttons you clicked) or a screen capture video of the crash? Thanks!

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<div class="post-metadata">

**Author:** ![Jainey](https://avatars.discourse-cdn.com/v4/letter/j/a88e57/32.png) [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Post date:** [March 22, 2020, 5:15am UTC](https://discourse.slicer.org/t/error-when-creating-sequence-of-markups-lines/10764/3 "2020-03-22T05:15:54Z")

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Will do,  
Thanks for the reply