# Thunkable Android apk crashes on open but not on Live Test **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [July 13, 2021, 1:15am UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159 "2021-07-13T01:15:47Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![wisemkt](https://avatars.discourse-cdn.com/v4/letter/w/848f3c/32.png) [@wisemkt](https://community.thunkable.com/u/wisemkt)\ **Post date:** [July 13, 2021, 1:15am UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159/1 "2021-07-13T01:15:47Z")
Application works fine on iOS and at the Live Test on Android and iOS but the downloaded apk for Android crashes on open on Android 10. Message from os: application fail continually! Appreciate any comments, thanks ---
**Author:** ![catsarisky](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/catsarisky/32/100661_2.png) [@catsarisky](https://community.thunkable.com/u/catsarisky)\ **Post date:** [July 13, 2021, 1:32am UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159/2 "2021-07-13T01:32:52Z")
What does your first screen look like? Is there a webviewer? ---
**Author:** ![wisemkt](https://avatars.discourse-cdn.com/v4/letter/w/848f3c/32.png) [@wisemkt](https://community.thunkable.com/u/wisemkt)\ **Post date:** [July 16, 2021, 8:22pm UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159/3 "2021-07-16T20:22:46Z")
Hi thanks for your comments. ![Screenshot_3](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/f/b/fba2cf82f99af0caf2b3f035bb66bb87a0bbd77b.jpeg) We do not use webviewer. only simple buttons and BT connectivity. the application does not starts on Android only on iOS. Thanks again. ---
**Author:** ![catsarisky](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/catsarisky/32/100661_2.png) [@catsarisky](https://community.thunkable.com/u/catsarisky)\ **Post date:** [July 16, 2021, 8:40pm UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159/4 "2021-07-16T20:40:52Z")
Unfortunately, no one can help you debug it with so little information. If you want help, post a link to the project or images of your blocks. ---
**Author:** ![wisemkt](https://avatars.discourse-cdn.com/v4/letter/w/848f3c/32.png) [@wisemkt](https://community.thunkable.com/u/wisemkt)\ **Post date:** [July 20, 2021, 1:14pm UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159/5 "2021-07-20T13:14:55Z")
Hi, the project is quite huge but the problem can be replicated with a very small code which is easer to share. I found out the the problem is with the List\_Viewer. Without this list it works fine. I also saw comments from the Thunkable team the is you use the List\_viewer inside a Navigator it resolves the problem. ![Code](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/7/5/75900a714cd297af7c95458e5763ddbd54750f4e.jpeg) ---
**Author:** ![muneer](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/muneer/32/75210_2.png) [@muneer](https://community.thunkable.com/u/muneer)\ **Post date:** [July 20, 2021, 2:20pm UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159/6 "2021-07-20T14:20:56Z")
The `List Viewer` as its name suggests expects a `list` and you are trying to assign a `text` to it. Initialize “DevName” as `empty list at first and everything should work fine. ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [November 8, 2024, 1:19pm UTC](https://community.thunkable.com/t/thunkable-android-apk-crashes-on-open-but-not-on-live-test/1393159/7 "2024-11-08T13:19:47Z")