# AMASSS error with cbct segmentation

**URL:** <https://discourse.slicer.org/t/amasss-error-with-cbct-segmentation/35142>\
**Category:** Support\
**Tags:** segmentation, extensions-manager\
**Created:** [March 27, 2024, 10:36pm UTC](https://discourse.slicer.org/t/amasss-error-with-cbct-segmentation/35142 "2024-03-27T22:36:30Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ARtur\_Zhumabekov](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/artur_zhumabekov/32/67145_2.png) [@ARtur\_Zhumabekov](https://discourse.slicer.org/u/ARtur_Zhumabekov)\
**Post date:** [March 27, 2024, 10:36pm UTC](https://discourse.slicer.org/t/amasss-error-with-cbct-segmentation/35142/1 "2024-03-27T22:36:30Z")

</div>

Hello  
I have got a problem with AMASSS extension

Traceback (most recent call last):  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\_vendor\packaging\requirements.py”, line 35, in **init**  
parsed = \_parse\_requirement(requirement\_string)  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\_vendor\packaging\_parser.py”, line 64, in parse\_requirement  
return \_parse\_requirement(Tokenizer(source, rules=DEFAULT\_RULES))  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\_vendor\packaging\_parser.py”, line 82, in \_parse\_requirement  
url, specifier, marker = \_parse\_requirement\_details(tokenizer)  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\_vendor\packaging\_parser.py”, line 126, in \_parse\_requirement\_details  
marker = \_parse\_requirement\_marker(  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\_vendor\packaging\_parser.py”, line 147, in \_parse\_requirement\_marker  
tokenizer.raise\_syntax\_error(  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\_vendor\packaging\_tokenizer.py”, line 165, in raise\_syntax\_error  
raise ParserSyntaxError(  
pkg\_resources.extern.packaging.\_tokenizer.ParserSyntaxError: Expected end or semicolon (after name and no valid version specifier)  
torch, torchvision, torchaudio  
^

The above exception was the direct cause of the following exception:

Traceback (most recent call last):  
File “C:/Users/zhuma/AppData/Local/slicer.org/Slicer 5.6.1/slicer.org/Extensions-32438/SlicerAutomatedDentalTools/lib/Slicer-5.6/qt-scripted-modules/AMASSS.py”, line 704, in onPredictButton  
libs\_installation = install\_function(list\_libs,platform.system())  
File “C:/Users/zhuma/AppData/Local/slicer.org/Slicer 5.6.1/slicer.org/Extensions-32438/SlicerAutomatedDentalTools/lib/Slicer-5.6/qt-scripted-modules/AMASSS.py”, line 51, in install\_function  
if not check\_lib\_installed(lib, version):  
File “C:/Users/zhuma/AppData/Local/slicer.org/Slicer 5.6.1/slicer.org/Extensions-32438/SlicerAutomatedDentalTools/lib/Slicer-5.6/qt-scripted-modules/AMASSS.py”, line 31, in check\_lib\_installed  
installed\_version = pkg\_resources.get\_distribution(lib\_name).version  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\__init_\_.py”, line 526, in get\_distribution  
dist = Requirement.parse(dist)  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\__init_\_.py”, line 3215, in parse  
(req,) = parse\_requirements(s)  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\__init_\_.py”, line 3174, in **init**  
super(Requirement, self). **init** (requirement\_string)  
File “C:\Users\zhuma\AppData\Local\slicer.org\Slicer 5.6.1\lib\Python\Lib\site-packages\pkg\_resources\_vendor\packaging\requirements.py”, line 37, in **init**  
raise InvalidRequirement(str(e)) from e  
pkg\_resources.extern.packaging.requirements.InvalidRequirement: Expected end or semicolon (after name and no valid version specifier)  
torch, torchvision, torchaudio

I tried to update conda and python, used NRRD cbct scan but still when i press Run Prediction on AMASSS extension there is no action