# App Crash happens

**URL:** <https://devforum.zoom.us/t/app-crash-happens/4144>\
**Category:** iOS\
**Created:** [May 3, 2019, 6:05pm UTC](https://devforum.zoom.us/t/app-crash-happens/4144 "2019-05-03T18:05:49Z")\
**Posts on this page:** 1\
**Showing post:** 158

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**Author:** ![saroroo123](https://avatars.discourse-cdn.com/v4/letter/s/df705f/32.png) [@saroroo123](https://devforum.zoom.us/u/saroroo123)\
**Post date:** [September 9, 2020, 1:20pm UTC](https://devforum.zoom.us/t/app-crash-happens/4144/158 "2020-09-09T13:20:50Z")

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Hi @carson.zoom

I am having trouble with Share screen process in Zoom SDK. I have added the **onClickShareScreen** function in my code but I can not able to see **Screen** button while I am tapping **Share** button at bottom.

Also when I try to run the build in Simulator (using this SDK ios-mobilertc-all-4.6.21666.0428-n ) it was showing correctly. I can see the **Screen** button.

When I trying to run the build in real time device (using this SDK zoom-sdk-ios-4.6.21666.0428) it was not showing. ☹

Please give your opinion. what I need to do to show the **Screen** button in real time device. Thanks!

Zoom SDK version: **4.6.21666.0428**  
iOS device and Version: iPhone 8 and 13.3.1  
xCode: 11.3.1  
Language: Objective C

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