# App crash when using AVCapturesession

**URL:** <https://devforum.zoom.us/t/app-crash-when-using-avcapturesession/52561>\
**Category:** iOS\
**Created:** [June 16, 2021, 10:00am UTC](https://devforum.zoom.us/t/app-crash-when-using-avcapturesession/52561 "2021-06-16T10:00:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ada](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ada/32/26217_2.png) [@ada](https://devforum.zoom.us/u/ada)\
**Post date:** [June 16, 2021, 10:00am UTC](https://devforum.zoom.us/t/app-crash-when-using-avcapturesession/52561/1 "2021-06-16T10:00:22Z")

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**Description**  
#0 (null) in \_\_exceptionPreprocess ()  
#2 (null) in -[AVCaptureSession addInput:] ()  
#3 0x10035208c in -[CameraCaptureAdapter createtCameraCaptureSession] at ExternalVideoSource/CameraCapture/CameraCaptureAdapter.m:93  
#4 (null) in 0x101a64000 ()  
#5 (null) in 0x101a64000 ()  
#6 (null) in 0x101a64000 ()  
#7 (null) in 0x101a64000 ()  
#8 (null) in **CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_A\_TIMER\_CALLBACK\_FUNCTION** ()  
#15 (null) in UIApplicationMain ()  
#16 0x100354aa8 in main at main.m:7  
#17 (null) in start ()

**Which Mobile Video SDK version?**  
zoom-instant-sdk-iOS-1.0.2

**To Reproduce(If applicable)**  
Unknown

**Smartphone:**

- Device: iPhone 7 Plus (Model 1661, 1784, 1785, 1786)
- OS: 14.4.2 (18D70)

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<div class="post-metadata">

**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [June 16, 2021, 6:10pm UTC](https://devforum.zoom.us/t/app-crash-when-using-avcapturesession/52561/2 "2021-06-16T18:10:20Z")

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Hey @ada,

Thanks for using the dev forum!

Do you have any reproduction steps or preconditions associated with this crash?

Thanks!  
Michael

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [July 17, 2021, 4:10am UTC](https://devforum.zoom.us/t/app-crash-when-using-avcapturesession/52561/3 "2021-07-17T04:10:23Z")

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Closed on July 17, 2021, 4:10am UTC

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