# SegmentStatistics error
**URL:** https://discourse.slicer.org/t/segmentstatistics-error/24803
**Category:** Support
**Created:** [August 17, 2022, 10:27am UTC](https://discourse.slicer.org/t/segmentstatistics-error/24803 "2022-08-17T10:27:28Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Jorge\_Wagner\_Esteves](https://discourse.slicer.org/u/Jorge_Wagner_Esteves)
#### Post date: [August 17, 2022, 10:27am UTC](https://discourse.slicer.org/t/segmentstatistics-error/24803/1 "2022-08-17T10:27:28Z")
Hi there,
I am starting with 3D Slicer, using version 5.0.2. I did a segmentation on CT images and tried to process it using SegmentStatistics to get organ volumes.
I am running 3D Slicer on an AMD Ryzen 7 3700X with 32 GB RAM and an RTX 2700 Super GPU under Windows 11.
I got the following error. Does someone get the same error: Any clue about what’s happening?
Traceback (most recent call last):
File “C:\Users\1090\AppData\Local\NA-MIC\Slicer 5.0.2\bin\Python\slicer\util.py”, line 2830, in tryWithErrorDisplay
yield
File “C:\Users\1090\AppData\Local\NA-MIC\Slicer 5.0.2\lib\Slicer-5.0\qt-scripted-modules\SegmentStatistics.py”, line 206, in onApply
self.logic.computeStatistics()
File “C:\Users\1090\AppData\Local\NA-MIC\Slicer 5.0.2\lib\Slicer-5.0\qt-scripted-modules\SegmentStatistics.py”, line 455, in computeStatistics
self.updateStatisticsForSegment(segmentID)
File “C:\Users\1090\AppData\Local\NA-MIC\Slicer 5.0.2\lib\Slicer-5.0\qt-scripted-modules\SegmentStatistics.py”, line 484, in updateStatisticsForSegment
stats = plugin.computeStatistics(segmentID)
File “C:\Users\1090\AppData\Local\NA-MIC\Slicer 5.0.2\NA-MIC\Extensions-30822\PET-IndiC\lib\Slicer-5.0\qt-scripted-modules\PETVolumeSegmentStatisticsPlugin\PETVolumeSegmentStatisticsPlugin.py”, line 79, in computeStatistics
resultMap[feature]=float(newResult)
ValueError: could not convert string to float: ‘’
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [August 17, 2022, 11:09am UTC](https://discourse.slicer.org/t/segmentstatistics-error/24803/2 "2022-08-17T11:09:57Z")
Most probably the PET-IndiC extension has not been updated to be fully compatible with Slicer-5, or you might use it in some unexpected way or type of input data.
Did you use the GUI of a module or you used the module logic via Python scripting?
Which module did you use?
What is your overall goal?
---
### Author:  [@Jorge\_Wagner\_Esteves](https://discourse.slicer.org/u/Jorge_Wagner_Esteves)
#### Post date: [August 17, 2022, 11:27am UTC](https://discourse.slicer.org/t/segmentstatistics-error/24803/3 "2022-08-17T11:27:33Z")
You are right!!!
I just removed the PET-IndiC extension that appeared as legacy, and the problem vanished!
Tanks