I have not been able to successfully open Autoscoper and have been receiving the error message included below. I have Slicer 5.10.0 and Autoscoper last update “Mon Nov 10 2025 (Revision: 85cd82f)”. A coworker with Slicer 5.6.2 and Autoscoper “06acebe last update Nov 22 2024” is also seeing the same error. All help is greatly appreciated! Thank you!
Error: File “C:\Users\User\AppData\Local\slicer.org\3D Slicer 5.10.0\lib\Python\Lib\site-packages\PyAutoscoper\connect.py”, line 142, in _openConnection
s.connect((self.address, 30007))
ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it
Thanks for reaching out! Were you able to open previous versions of Autoscoper on previous versions of 3D Slicer, or has this always been an issue? Also could you provided some details about the system you are working on: the operating system and GPU?
I have only had Slicer 5.10.0 on this device and have always had the problem. Operating system Windows 11, Intel(R) Graphics, processor Intel(R) Core™ Ultra 5 135U
My coworker had Autoscoper working on Slicer 5.6.2, and it just recently caused the same problem. Operating system Windows 11, Intel(R) Iris(R) XE Graphics, processor 12th Gen Intel(R) Core™ i5-1245U
Let me know if there any other information that might help! Thanks again
This sounds similar to an issue another user was having that we haven’t quite been able to figure out yet (Trouble Opening the Load Data - #8 by Megan_Weaver). Could you share a screenshot of the error you are getting? I will bring this up to our team and see if we can prioritize fixing this issue.
The issue seems to be unique to Intel graphics. I pushed a fix yesterday that ought to resolve it. Please update the AutoscoperM extension and test again. If you encounter further issues, please provide logs (accessible via “Help” > “Report a Bug” in the toolbar).
I was able to update the Autoscoper extension, but do not have the option to launch it. Below is the log. Thanks!
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Session start time …: 20260130_123743
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Slicer version …: 5.10.0 (revision 34045 / a2b6d08) win-amd64 - installed release
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Operating system …: Windows / Professional / (Build 26100, Code Page 65001) - 64-bit
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Memory …: 15817 MB physical, 30665 MB virtual
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - CPU …: GenuineIntel , 14 cores, 14 logical processors
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - VTK configuration …: OpenGL2 rendering, TBB threading
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Qt configuration …: version 5.15.2, with SSL, requested OpenGL 3.2 (core profile)
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - DCMTK configuration …: version 3.6.8, no SSL
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Internationalization …: disabled, language=
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Developer mode …: disabled
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Application path …: C:/Users/janae.ruzicki1/AppData/Local/slicer.org/3D Slicer 5.10.0/bin
[DEBUG][Qt] 30.01.2026 12:37:43 (unknown:0) - Additional module paths ..: slicer.org/Extensions-34045/SurfaceWrapSolidify/lib/Slicer-5.10/qt-scripted-modules, slicer.org/Extensions-34045/Sandbox/lib/Slicer-5.10/qt-loadable-modules, slicer.org/Extensions-34045/Sandbox/lib/Slicer-5.10/qt-scripted-modules, slicer.org/Extensions-34045/SegmentEditorExtraEffects/lib/Slicer-5.10/qt-loadable-modules, slicer.org/Extensions-34045/SegmentEditorExtraEffects/lib/Slicer-5.10/qt-scripted-modules, slicer.org/Extensions-34045/MarkupsToModel/lib/Slicer-5.10/qt-loadable-modules, slicer.org/Extensions-34045/SlicerAutoscoperM/lib/Slicer-5.10/qt-scripted-modules
[INFO][Stream] 30.01.2026 12:37:49 (unknown:0) -
[CRITICAL][Stream] 30.01.2026 12:37:57 (unknown:0) - Traceback (most recent call last):
[CRITICAL][Stream] 30.01.2026 12:37:57 (unknown:0) - File “”, line 1, in
[CRITICAL][Stream] 30.01.2026 12:37:57 (unknown:0) - File “”, line 999, in exec_module
[CRITICAL][Stream] 30.01.2026 12:37:57 (unknown:0) - File “”, line 488, in _call_with_frames_removed
[CRITICAL][Stream] 30.01.2026 12:37:57 (unknown:0) - File “C:/Users/janae.ruzicki1/AppData/Local/slicer.org/3D Slicer 5.10.0/slicer.org/Extensions-34045/SlicerAutoscoperM/lib/Slicer-5.10/qt-scripted-modules/AutoscoperM.py”, line 23, in
[CRITICAL][Stream] 30.01.2026 12:37:57 (unknown:0) - from AutoscoperMLib import IO, SubVolumeExtraction, Validation
[CRITICAL][Stream] 30.01.2026 12:37:57 (unknown:0) - ModuleNotFoundError: No module named ‘AutoscoperMLib’
[CRITICAL][Qt] 30.01.2026 12:37:57 (unknown:0) - loadSourceAsModule - Failed to load file “C:/Users/janae.ruzicki1/AppData/Local/slicer.org/3D Slicer 5.10.0/slicer.org/Extensions-34045/SlicerAutoscoperM/lib/Slicer-5.10/qt-scripted-modules/AutoscoperM.py” as module “AutoscoperM” !
[CRITICAL][Qt] 30.01.2026 12:37:57 (unknown:0) - Fail to instantiate module “AutoscoperM”
[CRITICAL][Stream] 30.01.2026 12:38:00 (unknown:0) - Traceback (most recent call last):
[CRITICAL][Stream] 30.01.2026 12:38:00 (unknown:0) - File “”, line 1, in
[CRITICAL][Stream] 30.01.2026 12:38:00 (unknown:0) - File “”, line 999, in exec_module
[CRITICAL][Stream] 30.01.2026 12:38:00 (unknown:0) - File “”, line 488, in _call_with_frames_removed
[CRITICAL][Stream] 30.01.2026 12:38:00 (unknown:0) - File “C:/Users/janae.ruzicki1/AppData/Local/slicer.org/3D Slicer 5.10.0/slicer.org/Extensions-34045/SlicerAutoscoperM/lib/Slicer-5.10/qt-scripted-modules/Hierarchical3DRegistration.py”, line 17, in
[CRITICAL][Stream] 30.01.2026 12:38:00 (unknown:0) - from AutoscoperM import AutoscoperMLogic
[CRITICAL][Stream] 30.01.2026 12:38:00 (unknown:0) - ImportError: cannot import name ‘AutoscoperMLogic’ from ‘AutoscoperM’ (C:/Users/janae.ruzicki1/AppData/Local/slicer.org/3D Slicer 5.10.0/slicer.org/Extensions-34045/SlicerAutoscoperM/lib/Slicer-5.10/qt-scripted-modules/AutoscoperM.py)
[CRITICAL][Qt] 30.01.2026 12:38:00 (unknown:0) - loadSourceAsModule - Failed to load file “C:/Users/janae.ruzicki1/AppData/Local/slicer.org/3D Slicer 5.10.0/slicer.org/Extensions-34045/SlicerAutoscoperM/lib/Slicer-5.10/qt-scripted-modules/Hierarchical3DRegistration.py” as module “Hierarchical3DRegistration” !
[CRITICAL][Qt] 30.01.2026 12:38:00 (unknown:0) - Fail to instantiate module “Hierarchical3DRegistration”
[CRITICAL][Qt] 30.01.2026 12:38:02 (unknown:0) - The following modules failed to be instantiated:
[CRITICAL][Qt] 30.01.2026 12:38:02 (unknown:0) - AutoscoperM
[CRITICAL][Qt] 30.01.2026 12:38:02 (unknown:0) - Hierarchical3DRegistration
[DEBUG][Python] 30.01.2026 12:38:04 [Python] (C:\Users\janae.ruzicki1\AppData\Local\slicer.org\3D Slicer 5.10.0\lib\Slicer-5.10\qt-scripted-modules\SubjectHierarchyPlugins\AbstractScriptedSubjectHierarchyPlugin.py:40) - Scripted subject hierarchy plugin registered: SegmentEditor
[DEBUG][Python] 30.01.2026 12:38:04 [Python] (C:\Users\janae.ruzicki1\AppData\Local\slicer.org\3D Slicer 5.10.0\lib\Slicer-5.10\qt-scripted-modules\SubjectHierarchyPlugins\AbstractScriptedSubjectHierarchyPlugin.py:40) - Scripted subject hierarchy plugin registered: SegmentStatistics
[DEBUG][Qt] 30.01.2026 12:38:04 (unknown:0) - Switch to module: “Welcome”
[WARNING][Qt] 30.01.2026 12:39:04 (unknown:0) - An OpenGL Core Profile was requested, but it is not supported on the current platform. Falling back to a non-Core profile. Note that this might cause rendering issues.
[WARNING][Qt] 30.01.2026 12:39:05 (unknown:0) - Property ‘verbose’’ of object ‘qSlicerWebPythonProxy’ has no notify signal and is not constant, value updates in HTML will be broken!
[WARNING][Qt] 30.01.2026 12:39:06 (unknown:0) - Property ‘verbose’’ of object ‘qSlicerWebPythonProxy’ has no notify signal and is not constant, value updates in HTML will be broken!
[WARNING][Qt] 30.01.2026 12:39:08 (unknown:0) - Mixed Content: The page at ‘ @KitwareMedical/slicer-extensions-webapp ’ was loaded over HTTPS, but requested an insecure image ‘http://wiki.slicer.org/slicerWiki/images/f/f6/IntensitySegmenterIcon.png’. This content should also be served over HTTPS.
[DEBUG][Qt] 30.01.2026 12:39:13 (unknown:0) - Switch to module: “TrackingEvaluation”
[WARNING][Qt] 30.01.2026 12:39:15 (unknown:0) - A cookie associated with a cross-site resource at http://www.nitrc.org/ was set without the SameSite attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with SameSite=None and Secure. You can review cookies in developer tools under Application>Storage>Cookies and see more details at Chrome Platform Status and Chrome Platform Status.
Thanks for including the logs! It is very helpful.
That looks to me like something has failed during the extension update. Try opening the extension manager and uninstall SlicerAutoscoperM, then restart Slicer, then install SlicerAutoscoperM, then restart Slicer again.
To help confirm the extension installed correctly, you could navigate to C:/Users/janae.ruzicki1/AppData/Local/slicer.org/3D Slicer 5.10.0/slicer.org/Extensions-34045/SlicerAutoscoperM/lib/Slicer-5.10/qt-scripted-modules/ in Windows File Explorer; there should be a directory there called AutoscoperMLib that contains several .py files. If that directory is missing or empty, it indicates the extension has failed to install correctly.
