# Appkication Crash when success get stream and candidate

**URL:** <https://react-native-webrtc.discourse.group/t/appkication-crash-when-success-get-stream-and-candidate/1530>\
**Category:** Help\
**Created:** [April 19, 2022, 4:14am UTC](https://react-native-webrtc.discourse.group/t/appkication-crash-when-success-get-stream-and-candidate/1530 "2022-04-19T04:14:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![untukwebku12](https://avatars.discourse-cdn.com/v4/letter/u/b782af/32.png) [@untukwebku12](https://react-native-webrtc.discourse.group/u/untukwebku12)\
**Post date:** [April 19, 2022, 4:14am UTC](https://react-native-webrtc.discourse.group/t/appkication-crash-when-success-get-stream-and-candidate/1530/1 "2022-04-19T04:14:28Z")

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I got an error like this when I got candidate and managed to get streaming,  
the app crashes right away, please help…

2022-04-19 11:08:52.704 13654-14040/com.rnclient E/rtc: #  
# Fatal error in: …/…/media/engine/webrtc\_video\_engine.cc, line 2747  
# last system error: 0  
# Check failed: parameters\_.codec\_settings  
#

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**Author:** ![8BallBomBom](https://yyz2.discourse-cdn.com/free1/user_avatar/react-native-webrtc.discourse.group/8ballbombom/32/710_2.png) [@8BallBomBom](https://react-native-webrtc.discourse.group/u/8BallBomBom)\
**Post date:** [April 21, 2022, 5:45am UTC](https://react-native-webrtc.discourse.group/t/appkication-crash-when-success-get-stream-and-candidate/1530/2 "2022-04-21T05:45:11Z")

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Having trouble recognising if that is even related to the RN WebRTC Module.  
Can you provide more info?