# Nothing happens when I start screen sharing **URL:** \ **Category:** React Native\ **Created:** [March 14, 2023, 3:35am UTC](https://devforum.zoom.us/t/nothing-happens-when-i-start-screen-sharing/84654 "2023-03-14T03:35:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![fr4nky.develop3r](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fr4nky.develop3r/32/45315_2.png) [@fr4nky.develop3r](https://devforum.zoom.us/u/fr4nky.develop3r)\ **Post date:** [March 14, 2023, 3:35am UTC](https://devforum.zoom.us/t/nothing-happens-when-i-start-screen-sharing/84654/1 "2023-03-14T03:35:00Z")
**Description** Hi. I am trying to implement the screen share functionality into my app. I have followed carefully these instructions: [https://marketplace.zoom.us/docs/sdk/video/ios/advanced/screen-share/broadcast/#broadcast-the-device-screen](https://marketplace.zoom.us/docs/sdk/video/ios/advanced/screen-share/broadcast/#broadcast-the-device-screen) I am able to select the ScreenShare extension from the broadcast picker but nothing happens when I begin broadcasting. Also I have checked these tips [https://marketplace.zoom.us/docs/sdk/video/ios/advanced/screen-share/screen-share-troubleshoot/#nothing-happens-when-i-begin-broadcasting](https://marketplace.zoom.us/docs/sdk/video/ios/advanced/screen-share/screen-share-troubleshoot/#nothing-happens-when-i-begin-broadcasting) **Errors** **2023-03-13 21:00:10.677227-0600 ScreenShare[1293:189758] [User Defaults] Couldn’t read values in CFPrefsPlistSource\<0x2806e1100\> (Domain: group.W2BX7H5JCL.ProfeSantiScreenShare, User: kCFPreferencesAnyUser, ByHost: Yes, Container: (null), Contents Need Refresh: Yes): Using kCFPreferencesAnyUser with a container is only allowed for System Containers, detaching from cfprefsd** I followed these recommendations [xcode - Failed to read values in CFPrefsPlistSource iOS 10 - Stack Overflow](https://stackoverflow.com/questions/38275395/failed-to-read-values-in-cfprefsplistsource-ios-10) but I can’t make it work. Could you please guys help me with this? **Screenshots** I attach my group ids configuration and other useful screens. ![IMG_7178.PNG](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/e/5/e554aa8d146e93dad7331286f23555fcf57b8cf9.jpeg) ![IMG_7179.PNG](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/1/2/128d127a06d81b6869f68b139e870eee17ce93eb.jpeg) ![IMG_7180.PNG](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/d/9/d9db1416aa8db620d76cd337cc58b7eff6f628da.jpeg) App groups in App target ![Screenshot 2023-03-13 at 21.27.41](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/7/3/733ce8176e0ebadfdcbd42e119af2ecf701feb04.png) App groups in ScreenShare target ![Screenshot 2023-03-13 at 21.23.46](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/7/2/720d0b7f457fbe9abc970ce3d575a696aefeed57.png) SampleHandler.mm ![Screenshot 2023-03-13 at 21.25.15](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/4/c/4c6ac2a0c2682d3d853d9b6257989771cc312afa.jpeg) App group in ZoomVideoSdkProvider ![Screenshot 2023-03-13 at 21.29.26](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/0/3/039e145e7106543317f26d567c6ce6e449660d9a.png) In SampleHandler.mm broadcastStartedWithSetupInfo function is getting executed. ![Screenshot 2023-03-13 at 21.41.05](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/9/2/9264ab324997474a9c95229a057b573a4d650eb7.png) Thanks guys **Which React Native Video SDK version?** 1.6-2.2 **Smartphone (please complete the following information):** - Device: iPhone XR - OS: 16.2 ---
**Author:** ![rehema.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/rehema.zoom/32/40323_2.png) [@rehema.zoom](https://devforum.zoom.us/u/rehema.zoom)\ **Post date:** [March 21, 2023, 8:11pm UTC](https://devforum.zoom.us/t/nothing-happens-when-i-start-screen-sharing/84654/3 "2023-03-21T20:11:48Z")
Hi @fr4nky.develop3r , Thank you for post. I’m doing some digging on this error you’re getting, and will reach back out when I have an update for you. Thanks, Rehema ---
**Author:** ![fr4nky.develop3r](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fr4nky.develop3r/32/45315_2.png) [@fr4nky.develop3r](https://devforum.zoom.us/u/fr4nky.develop3r)\ **Post date:** [March 22, 2023, 8:52pm UTC](https://devforum.zoom.us/t/nothing-happens-when-i-start-screen-sharing/84654/4 "2023-03-22T20:52:21Z")
Thanks @rehema.zoom I really appreciate you are taking a look on this issue. If you need something of my part please let me know. ---
**Author:** ![rehema.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/rehema.zoom/32/40323_2.png) [@rehema.zoom](https://devforum.zoom.us/u/rehema.zoom)\ **Post date:** [March 22, 2023, 11:47pm UTC](https://devforum.zoom.us/t/nothing-happens-when-i-start-screen-sharing/84654/5 "2023-03-22T23:47:36Z")
Hi @fr4nky.develop3r , The issue seems to be with the implementation of the Broadcast extension in Xcode, rather than the SDK itself. Try checking the following: 1. If the bundle ID of your main app and bundle ID of your broadcast extension is associated. For example, if your app’s bundle ID is xx.xx.xxx, then your broadcast extension ID must be xx.xx.xxx.{something} 2. Check if the App Group ID is still valid; you can check this on your Apple Developer Account portal Overall, the error you’re seeing is a warning, but not the root cause of your app not working. Please let me know if checking these issues helps at all. Thanks, Rehema ---
**Author:** ![fr4nky.develop3r](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fr4nky.develop3r/32/45315_2.png) [@fr4nky.develop3r](https://devforum.zoom.us/u/fr4nky.develop3r)\ **Post date:** [March 28, 2023, 7:30pm UTC](https://devforum.zoom.us/t/nothing-happens-when-i-start-screen-sharing/84654/6 "2023-03-28T19:30:15Z")
Hi @rehema.zoom I checked both bundle ID´s and they seem to be associated. Main app: **org.reactjs.native.example.Profe-Santi** Broadcast extension: **org.reactjs.native.example.Profe-Santi.ScreenShare** Also I made sure that my app group ID is valid. I will keep trying and let you know what the issue was. Thanks!!! ---
**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:** [April 13, 2023, 3:35am UTC](https://devforum.zoom.us/t/nothing-happens-when-i-start-screen-sharing/84654/7 "2023-04-13T03:35:51Z")
Closed on April 13, 2023, 3:35am UTC This topic was automatically closed after 30 days. New replies are no longer allowed.