# NVidia AIAA segment editor effect returns "URL not found" error

**URL:** <https://discourse.slicer.org/t/nvidia-aiaa-segment-editor-effect-returns-url-not-found-error/16811>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [March 28, 2021, 10:12pm UTC](https://discourse.slicer.org/t/nvidia-aiaa-segment-editor-effect-returns-url-not-found-error/16811 "2021-03-28T22:12:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![akmal871026](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/akmal871026/32/11642_2.png) [@akmal871026](https://discourse.slicer.org/u/akmal871026)\
**Post date:** [March 28, 2021, 10:12pm UTC](https://discourse.slicer.org/t/nvidia-aiaa-segment-editor-effect-returns-url-not-found-error/16811/1 "2021-03-28T22:12:04Z")

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Hi all, I got this error when trying to use Nvidia Extension for liver and tumor segmentation. anyone can help me?

Traceback (most recent call last):  
File “C:/Users/Akmal/AppData/Local/NA-MIC/Slicer 4.11.20210226/NA-MIC/Extensions-29738/NvidiaAIAssistedAnnotation/lib/Slicer-4.11/qt-scripted-modules/SegmentEditorNvidiaAIAALib/SegmentEditorEffect.py”, line 410, in onClickSegmentation  
extreme\_points, result\_file = self.logic.segmentation(in\_file, session\_id, model)  
File “C:/Users/Akmal/AppData/Local/NA-MIC/Slicer 4.11.20210226/NA-MIC/Extensions-29738/NvidiaAIAssistedAnnotation/lib/Slicer-4.11/qt-scripted-modules/SegmentEditorNvidiaAIAALib/SegmentEditorEffect.py”, line 1092, in segmentation  
session\_id=session\_id,  
File “C:\Users\Akmal\AppData\Local\NA-MIC\Slicer 4.11.20210226\NA-MIC\Extensions-29738\NvidiaAIAssistedAnnotation\lib\Slicer-4.11\qt-scripted-modules\NvidiaAIAAClientAPI\client\_api.py”, line 389, in inference  
raise AIAAException(AIAAError.SERVER\_ERROR, ‘Status: {}; Response: {}’.format(status, form))  
NvidiaAIAAClientAPI.client\_api.AIAAException: (3, ‘Status: 404; Response: b’\n404 Not Found\n

# Not Found
\n

The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.

\n’’)

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [March 28, 2021, 11:28pm UTC](https://discourse.slicer.org/t/nvidia-aiaa-segment-editor-effect-returns-url-not-found-error/16811/2 "2021-03-28T23:28:02Z")

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Hi @akmal871026, please see this thread linked below

> [@NVIDIA AIAA default server error when running auto-segmentation](https://discourse.slicer.org/t/nvidia-aiaa-default-server-error-when-running-auto-segmentation/16643/2):
>
> Unfortunately, the liver model and the default server is not compatible with the latest NVidia AIAA client version (see error report [here](https://github.com/NVIDIA/ai-assisted-annotation-client/issues/76)). You can segment from boundary points (that is faster and more robust anyway) or set up your own server as described in the link provided in [setup instructions](https://github.com/NVIDIA/ai-assisted-annotation-client/tree/master/slicer-plugin#setup).