# java.lang.UnsatisfiedLinkError: No implementation found for boolean com.zipow.videobox.confapp.CmmConfContext.isWebinarImpl(int)

**URL:** <https://devforum.zoom.us/t/java-lang-unsatisfiedlinkerror-no-implementation-found-for-boolean-com-zipow-videobox-confapp-cmmconfcontext-iswebinarimpl-int/106162>\
**Category:** Android\
**Tags:** video-sdk\
**Created:** [March 20, 2024, 1:23pm UTC](https://devforum.zoom.us/t/java-lang-unsatisfiedlinkerror-no-implementation-found-for-boolean-com-zipow-videobox-confapp-cmmconfcontext-iswebinarimpl-int/106162 "2024-03-20T13:23:45Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![achintnarang](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/achintnarang/32/49346_2.png) [@achintnarang](https://devforum.zoom.us/u/achintnarang)\
**Post date:** [March 20, 2024, 1:23pm UTC](https://devforum.zoom.us/t/java-lang-unsatisfiedlinkerror-no-implementation-found-for-boolean-com-zipow-videobox-confapp-cmmconfcontext-iswebinarimpl-int/106162/1 "2024-03-20T13:23:45Z")

</div>

**Meeting SDK Type and Version**  
Zoom Android Meeting SDK version 5.15.12

**Description**  
Recently we have seen lots of crashes reported by Google Play. According to the stack trace, they are caused by Zoom Meeting SDK. Here’s the stack trace :-

````auto
Fatal Exception: java.lang.UnsatisfiedLinkError: No implementation found for boolean com.zipow.videobox.confapp.CmmConfContext.isWebinarImpl(int) (tried Java_com_zipow_videobox_confapp_CmmConfContext_isWebinarImpl and Java_com_zipow_videobox_confapp_CmmConfContext_isWebinarImpl__I) - is the library loaded, e.g. System.loadLibrary?
       at com.zipow.videobox.confapp.CmmConfContext.isWebinarImpl(CmmConfContext.java)
       at com.zipow.videobox.confapp.CmmConfContext.isWebinar(CmmConfContext.java:1)
       at com.zipow.videobox.confapp.meeting.confhelper.ZmConfSettingsByDefaultInst.isWebinar(ZmConfSettingsByDefaultInst.java:2)
       at us.zoom.proguard.ix1.b(ZmBOHelper.java:9)
       at com.zipow.videobox.conference.ui.ZmFoldableConfActivity.onDestroy(ZmFoldableConfActivity.java:11)
       at android.app.Activity.performDestroy(Activity.java:8690)
       at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1438)
       at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:5746)
       at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:5792)
       at android.app.servertransaction.DestroyActivityItem.execute(DestroyActivityItem.java:47)
       at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
       at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
       at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2470)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loopOnce(Looper.java:240)
       at android.os.Looper.loop(Looper.java:351)
       at android.app.ActivityThread.main(ActivityThread.java:8423)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:584)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1013)```
````

---

<div class="post-metadata">

**Author:** ![achintnarang](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/achintnarang/32/49346_2.png) [@achintnarang](https://devforum.zoom.us/u/achintnarang)\
**Post date:** [March 20, 2024, 2:11pm UTC](https://devforum.zoom.us/t/java-lang-unsatisfiedlinkerror-no-implementation-found-for-boolean-com-zipow-videobox-confapp-cmmconfcontext-iswebinarimpl-int/106162/2 "2024-03-20T14:11:46Z")

</div>

@carson.zoom can you please help here

---

<div class="post-metadata">

**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 20, 2024, 12:12am UTC](https://devforum.zoom.us/t/java-lang-unsatisfiedlinkerror-no-implementation-found-for-boolean-com-zipow-videobox-confapp-cmmconfcontext-iswebinarimpl-int/106162/3 "2024-04-20T00:12:04Z")

</div>

Closed on April 20, 2024, 12:12am UTC

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.