# Fatal Exception: java.lang.NullPointerException

**URL:** <https://devforum.zoom.us/t/fatal-exception-java-lang-nullpointerexception/51024>\
**Category:** Android\
**Created:** [May 25, 2021, 8:48pm UTC](https://devforum.zoom.us/t/fatal-exception-java-lang-nullpointerexception/51024 "2021-05-25T20:48:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rk9629304097](https://avatars.discourse-cdn.com/v4/letter/r/f19dbf/32.png) [@rk9629304097](https://devforum.zoom.us/u/rk9629304097)\
**Post date:** [May 25, 2021, 8:48pm UTC](https://devforum.zoom.us/t/fatal-exception-java-lang-nullpointerexception/51024/1 "2021-05-25T20:48:42Z")

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SDK Version : v5.4.3.613  
Fatal Exception: java.lang.NullPointerException  
Attempt to invoke virtual method ‘android.view.View android.view.View.findViewById(int)’ on a null object reference

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method ‘android.view.View android.view.View.findViewById(int)’ on a null object reference  
at com.zipow.videobox.ConfActivityNormal.updateMeetingNumberTextViewWidth(ConfActivityNormal.java:1652)  
at com.zipow.videobox.ConfActivityNormal.onConfigurationChanged(ConfActivityNormal.java:1453)  
at android.app.ActivityThread.performActivityConfigurationChanged(ActivityThread.java:5081)  
at android.app.ActivityThread.performConfigurationChangedForActivity(ActivityThread.java:4948)  
at android.app.ActivityThread.performConfigurationChangedForActivity(ActivityThread.java:4926)  
at android.app.ActivityThread.handleActivityConfigurationChanged(ActivityThread.java:5293)  
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1811)  
at android.os.Handler.dispatchMessage(Handler.java:106)  
at android.os.Looper.loop(Looper.java:192)  
at android.app.ActivityThread.main(ActivityThread.java:6711)  
at java.lang.reflect.Method.invoke(Method.java)  
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:549)  
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:826)

Please help to fix this crash.

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<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [May 26, 2021, 12:12am UTC](https://devforum.zoom.us/t/fatal-exception-java-lang-nullpointerexception/51024/2 "2021-05-26T00:12:04Z")

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Hi @rk9629304097, thanks for using the dev forum.

Sorry to hear you are running into this crash. Can you please update to the latest version of the SDK and see if you are still getting the crash? If so, are you able to reproduce it in the sample app included with the SDK?

Thanks!

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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:** [June 25, 2021, 10:12am UTC](https://devforum.zoom.us/t/fatal-exception-java-lang-nullpointerexception/51024/3 "2021-06-25T10:12:40Z")

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Closed on June 25, 2021, 10:12am UTC

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