# Crashing on HoughCircles?

**URL:** <https://forums.developer.nvidia.com/t/crashing-on-houghcircles/177333>\
**Category:** Jetson Nano\
**Tags:** opencv\
**Created:** [May 7, 2021, 10:27pm UTC](https://forums.developer.nvidia.com/t/crashing-on-houghcircles/177333 "2021-05-07T22:27:36Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![DaneLLL](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/danelll/32/14043_2.png) [@DaneLLL](https://forums.developer.nvidia.com/u/DaneLLL)\
**Post date:** [May 10, 2021, 2:14am UTC](https://forums.developer.nvidia.com/t/crashing-on-houghcircles/177333/4 "2021-05-10T02:14:25Z")

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Hi,  
We suggest break down the pipeline to check which part triggers the segment fault. Please check if you can run this and see camera preview:  
[OpenCV Video Capture with GStreamer doesn't work on ROS-melodic - #3 by DaneLLL](https://forums.developer.nvidia.com/t/opencv-video-capture-with-gstreamer-doesnt-work-on-ros-melodic/113147/3)

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