# App Crash with Critical Error Occured! **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [September 9, 2021, 11:33pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397 "2021-09-09T23:33:20Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![info5958](https://avatars.discourse-cdn.com/v4/letter/i/4491bb/32.png) [@info5958](https://community.thunkable.com/u/info5958)\ **Post date:** [September 9, 2021, 11:33pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/1 "2021-09-09T23:33:20Z")
Hi, The app crash, just start without show the first screen, both in the Thunkable app simulator and also using apk, give back on the screen of the device this message: com.facebook.react.bridge.JSApplicationIllegalArgumentException: Error while updating property ‘flex’ in shadow node of type: RCTView at … The app is very simple and almost componets are used without modification in the most of parameters, also deleting and re-create the screen the problem occour again. Can someone in Thunkable staff help me ? Or do someone in the community know a work around solution applied directly by me, in the design interface of Thunkable, in order to avoid the problem ? Thanks in advance. Kind regards ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [September 9, 2021, 11:41pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/2 "2021-09-09T23:41:06Z")
Can you share a link to your project? ---
**Author:** ![gobassky](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/gobassky/32/77019_2.png) [@gobassky](https://community.thunkable.com/u/gobassky)\ **Post date:** [September 10, 2021, 12:00am UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/3 "2021-09-10T00:00:33Z")
> [@info5958](#): > > Or do someone in the community know a work around solution applied directly by me, in the design interface of Thunkable, in order to avoid the problem ? > > Thanks in advance. > Kind regards Crashes has been happening in the last 2 days even with previously working apps. There were discussions on the symptoms in the other threads, you may want to take a look. Hopefully Thunkable staff is looking into this. ---
**Author:** ![parna.mehtac](https://avatars.discourse-cdn.com/v4/letter/p/3be4f8/32.png) [@parna.mehtac](https://community.thunkable.com/u/parna.mehtac)\ **Post date:** [September 10, 2021, 6:17am UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/5 "2021-09-10T06:17:32Z")
I have been facing the same App crashing issue reported by the author of this post since yesterday 9th September. Preview and Live test don’t respond and Thunkable Live App crashes constantly without any known reason. I had also used a Web API component a couple of days ago with an App but the crash is happening with Apps which do not use Web API component too. Thunkable team kindly help resolve. ---
**Author:** ![info5958](https://avatars.discourse-cdn.com/v4/letter/i/4491bb/32.png) [@info5958](https://community.thunkable.com/u/info5958)\ **Post date:** [September 10, 2021, 8:42am UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/6 "2021-09-10T08:42:52Z")
Yes of course. Here the link: [https://x.thunkable.com/projects/61391fb0f802890010c401a1/09b6e93b-d9c5-40d1-bb17-a2e668bc7497](https://x.thunkable.com/projects/61391fb0f802890010c401a1/09b6e93b-d9c5-40d1-bb17-a2e668bc7497) Thanks ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [September 10, 2021, 2:53pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/7 "2021-09-10T14:53:46Z")
I’ll test it when I can. Right now, it’s just giving me a blank white screen when I try to open the project. ---
**Author:** ![info5958](https://avatars.discourse-cdn.com/v4/letter/i/4491bb/32.png) [@info5958](https://community.thunkable.com/u/info5958)\ **Post date:** [September 10, 2021, 3:03pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/8 "2021-09-10T15:03:12Z")
When the problem occur in a project, in the Thunkable app web simulator the screen is blank white but in the Thunkable app on the smartphone appear the error reported. I will wait for the feedback and hope for the solution. Thanks for your support ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [September 10, 2021, 4:10pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/9 "2021-09-10T16:10:54Z")
Sorry, I’ve tried on two different computers and I can’t open that project at all. ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/7/d/7d0edf544990171c25fab3478205ec6c53c5cefb.png) It may just be my account, though. ---
**Author:** ![info5958](https://avatars.discourse-cdn.com/v4/letter/i/4491bb/32.png) [@info5958](https://community.thunkable.com/u/info5958)\ **Post date:** [September 10, 2021, 4:27pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/10 "2021-09-10T16:27:44Z")
Ah ok, i misunderstanding, so you cannot open the project in order to see the blocks. Maybe yes, it depends by the user. Thanks anyway for the try. 🙂 ---
**Author:** ![martint](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/martint/32/96689_2.png) [@martint](https://community.thunkable.com/u/martint)\ **Post date:** [September 10, 2021, 4:31pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/11 "2021-09-10T16:31:42Z")
> [@Events Not Working](https://community.thunkable.com/t/events-not-working/1495834/70): > > For the people experienced Android crash, can you try this apk? [https://x.thunkable.com/deployment/app-release.apk](https://x.thunkable.com/deployment/app-release.apk) Thanks, Wei ---
**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, 1:16pm UTC](https://community.thunkable.com/t/app-crash-with-critical-error-occured/1497397/12 "2024-11-08T13:16:55Z")