React Native app opens and closes quickly after installation on ios simulator

react-native react-native-ios
Gabriel Schneider picture Gabriel Schneider · Jan 14, 2018 · Viewed 11.3k times · Source

I've been developing an App using React Native and when I switched to a Mac environment to set up the configurations for ios, after all the setup has been done, the app opens very quickly and closes after the installation, showing that powered by react native screen. I noticed that in my packager screen, the line from the bundle which shows a progress of how much has been loaded does not appear, as if it has never been loaded. Same thing happens if I try to run the code from Xcode.

Here is the screen I'm talking about, for a test project I started for comparisson purposes:

enter image description here

And here is the same screen for my App, without the progress indicator being displayed:

enter image description here

I tried following some solutions provided by the comunity for similar issues but none of them worked. Note that no error message is displayed in my terminal window, as if the build and installation has been succesfull.

Can someone help me with this one? I've been strugling with this App for quite some time, as react native always seems to crash and display error messages for me. Any help would be much appreciated :)

Edit: forgot to mention that I'm trying to run the app on the simulator since I don't have an actual device.

Answer

Andrei Olar picture Andrei Olar · Aug 8, 2018

Exactly this problem happened to me yesterday when I too installed react-native-firebase. I ran react-native run-ios and the app closed as soon as it opened without any specific errors.

I decided to run the app from Xcode, so I opened the Xcode project. To be more precise I opened the <Project>.xcworkspace because I installed CocoaPods. And there inside the logs I when trying to run the app I found the error. It said that the GoogleService-Info.plist was not found. And as I was looking through the Xcode workspace I did not see the file there, although it existed under /ios/<Project>/ in my IDE (VSCode). So maybe just a syncing problem.

So basically I added the file in Xcode as well, re-run and app was running fine.

Of course, I have no idea if I can find some sort of credible sources about this, but this exact issue happened to me under the exact same circumstances as yours.

Related questions

React Native version mismatch

Getting the following message when I init a new project and then launch the Xcode emulator: React-Native Version Mismatch Javascript Version 0.50.1 Native version: 0.50.0 Make sure you have rebuilt the native code. ... Does anyone know what is going on here and …

Read More
How can I regenerate ios folder in React Native project?

So a while ago I deleted the /ios directory in my react native app (let's call it X). I've been developing and testing using the android emulator but now I'd like to make sure it works on ios with xcode …

Read More
How do I make text bold, italic, or underline in React Native?

Surprisingly there isn't one question that groups these all together yet on Stack Overflow; there hasn't been an answer on SO for italics or underline, in fact, only this question for bold. I self-answered this quesiton below.

Read More