# I got a error in the tutorial of "Building Software Systems for Image-Guided Robot-Assisted Interventions"

**URL:** <https://discourse.slicer.org/t/i-got-a-error-in-the-tutorial-of-building-software-systems-for-image-guided-robot-assisted-interventions/25071>\
**Category:** Support\
**Tags:** python, ros\
**Created:** [September 4, 2022, 1:03am UTC](https://discourse.slicer.org/t/i-got-a-error-in-the-tutorial-of-building-software-systems-for-image-guided-robot-assisted-interventions/25071 "2022-09-04T01:03:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![xiaosnowqiang](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/xiaosnowqiang/32/16426_2.png) [@xiaosnowqiang](https://discourse.slicer.org/u/xiaosnowqiang)\
**Post date:** [September 4, 2022, 1:03am UTC](https://discourse.slicer.org/t/i-got-a-error-in-the-tutorial-of-building-software-systems-for-image-guided-robot-assisted-interventions/25071/1 "2022-09-04T01:03:25Z")

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Hello guys,  
I’ve follow the tutorial steps to build the communication between ROS and Slicer,but I got a error when follow the step to launch ‘IGTL Exporter/Importer from a new terminal’:  
 ![图片](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/5/4511142aff65a655b4fd63ac749c8cb24cb38c17.png)  
i got the error like below:

 ![图片](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/5/95fb10653b5fe770bbb931a9768a05129be5876f.png)

By the way,my Ubuntu os is 16.04 works in the VMware，ROS version is kinetic and Python version is Python 2.7.12 .

Can someone help me figure out the problem,thanks for any reply  
-Jian

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**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:** [September 9, 2022, 4:54pm UTC](https://discourse.slicer.org/t/i-got-a-error-in-the-tutorial-of-building-software-systems-for-image-guided-robot-assisted-interventions/25071/2 "2022-09-09T16:54:02Z")

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You might use a too old version of the tutorial, Ubuntu, and ROS. Try to find the latest version. If you still have problems, submit an issue in the github repository of the tutorial.