# App crash on Android devices

**URL:** https://forums.fusetools.com/t/app-crash-on-android-devices/8141
**Category:** Bug Reports
**Created:** [August 2, 2021, 12:52am UTC](https://forums.fusetools.com/t/app-crash-on-android-devices/8141 "2021-08-02T00:52:19Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Cristian\_Karmy](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/cristian_karmy/32/480_2.png) [@Cristian\_Karmy](https://forums.fusetools.com/u/Cristian_Karmy)
#### Post date: [August 2, 2021, 12:52am UTC](https://forums.fusetools.com/t/app-crash-on-android-devices/8141/1 "2021-08-02T00:52:19Z")

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Some users are reporting that the app crash. In the developer console appear this (any idea what can be?)

java.lang.RuntimeException:  
at com.foreign.ExternedBlockHost.callUno\_Uno\_Platform\_AndroidDisplay\_OnFrameCallback59 (Native Method)  
at com.foreign.Uno.Platform.AndroidDisplay$1.doFrame (AndroidDisplay.java:56)  
at android.view.Choreographer$CallbackRecord.run (Choreographer.java:1008)  
at android.view.Choreographer.doCallbacks (Choreographer.java:809)  
at android.view.Choreographer.doFrame (Choreographer.java:740)  
at android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:995)  
at android.os.Handler.handleCallback (Handler.java:938)  
at android.os.Handler.dispatchMessage (Handler.java:99)  
at android.os.Looper.loop (Looper.java:246)  
at android.app.ActivityThread.main (ActivityThread.java:8512)  
at java.lang.reflect.Method.invoke (Native Method)  
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:602)  
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1139)

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<div class="post-metadata">

### Author: ![Hassan\_M](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/hassan_m/32/957_2.png) [@Hassan\_M](https://forums.fusetools.com/u/Hassan_M)
#### Post date: [August 5, 2021, 2:10am UTC](https://forums.fusetools.com/t/app-crash-on-android-devices/8141/2 "2021-08-05T02:10:21Z")

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There is no valuable information on the error that you’ve posted except that the error coming from the native function of the app ( the generated C++ code by the `Uno` compiler) is there’s any additional detail?

I’m afraid You have to trace it, check in every function, business logic in js/ts and 3rd party libs if any.