I am using firebase crashlytics. I am causing a crash by doing
firebase.crashlytics().crash()
and I am not seeing the crash report on the firebase dashboard. The crash is working because on android i get this screen
and on ios the app freezes and i get brought to this page on xcode
But on the crashlytics dashboard on firebase the crashes are not showing up.
Is there any reason why the crashes are not showing up on crashlytics dashboard? I am using react-native-firebase. I know i installed it correctly because I tried causing the crashes natively on android with java and I am able to see the crash on crashlytics.
TL;DR: run react-native run-android --variant=release for Crashlytics to begin working properly, assuming you've set everything up correctly (which it certainly appears you have since firebase.crashlytics().crash() is crashing your application.)
Please note - in order for react-native run-android --variant=release to function properly, you will have needed to configure your APK for release builds according to the directions here: https://facebook.github.io/react-native/docs/signed-apk-android
I've never been happier to see my crash free users rating decrease :)
Let me know if you have any questions! Setting up signing can be a little confusing, so let me know if you have any questions.
This is a very frustrating issue, but fortunately, I've found the solution and I'm in exactly the same boat you are.
See that big red screen? That's React Native's way of telling you, during development, that you've made some kind of mistake. What isn't immediately obvious is that this red screen prevents errors from making it through to our error reporting tools. Running your app in release mode will prevent React Native from showing that red screen, and your error reporting tools will be able to report crashes.
As Gian has pointed out in another answer to this question, it appears that firebase.crashlytics().crash() is not functioning properly. However, this isn't quite true. Whenever you are operating in debug mode (anytime you can see the red screen, you're in what I'm calling debug mode), Crashlytics and other crash reporting tools cannot catch Native Exceptions, but they can catch Javascript exceptions.
Once you run the application in release mode as I’ve described above, Crashlyitcs will be able to catch Native Exceptions. If you look into Crashlytics.crash(), it’s actually an crash intentionally written in Java. In order for Crashlytics to actually ‘hear’ that the application is crashed due to a Native Exception, you have to be running in release mode, not debug mode.
Sorry for beating the dead horse down here, but I’ve been looking into this issue all morning and felt it pertinent to share this information to others suffering the same fate as I was.
In iOS you need to unlink the app from Xcode so that it doesn't freeze when a crash occurs.
Build the App.
Stop the project in Xcode without terminating the simulator or
device.
Then you can crash without Xcode freezing.
Reopen the app so that Firebase can send the crash report.
For more details on this, see here in the Firebase documentation.
It will definitely help you
Go to Edit Scheme
Run -> Info
Change the Build Configuration to release.
Now run the App
And crash your app manually. Now you can check on your crashlytics dashboard
Try this as well
Launch your simulator/iPhone
Press stop
Launch your app and force a crash
Relaunch the app from simulator/iPhone
See the crash report in the crashlytics dashboard.
firebase.crashlytics().crash() its not working properly.
I purposely made a bug to simulate a crash when i tap a button and that crash was caught and shown in the Crashlytics Dashboard inmediately.
Ej: I work with React Native so i changed a this.props.etc... to this.state.etc...
to create an "undefined is not a function exception".
Hope it helps!
which version of #react-native-firebase/crashlytics do you have on your package.json?
you'll need to use one of the versions released after June 2020 because otherwise it doesn't have the Fabric removal change. For example, I have to update to
"#react-native-firebase/app": "11.2.0",
"#react-native-firebase/crashlytics": "11.2.0",
Here you can check versions available:
https://www.npmjs.com/package/#react-native-firebase/crashlytics
its stupid from Firebase Teams, but the solution is :
1- Force the crash
2- Launching the app with ide or cli
3- stop launching app from ide or cli
4- launch the app from smilator like user normal
And you will see the crashs in firebase console.
Related
I am using Angular 11 and ionic 5 for my app. And it runs without any errors on my device from the android studio in development. But when I sign my code and upload it for internal or closed (Alpha, Beta) testing on playstore,I see my splash screen for less than half a second and then a blank white screen.
I am using Sentry to log errors so I can debug my app during production. But I see no error in sentry at this point.
So my question is, how can I figure out what is going wrong ?
White screen usually means that an there is an error!
What I think you should do:
Test using production mode on your device in android studio. You should see the error in the logs.
Use a 3rd party like Browserstack to upload your app and see if you get any errors.
Check if you first ask for permissions before you use any device native functionality
If you still cant find the error, update all your libraries to the latest version
If nothing else works, start deleting/commenting parts of the app until it finally works. Start with the 3rd party plugins or push notifications, then any ionic plugin. Using this you should be able to identify where the problem is.
How I can find out crash logs in release mode in a flutter. In the android studio, I am not able to get crash logs where the app is going to crash.
You can't get logs in release mode. If you want to collect crash logs in release mode please check crashlytics(free) product in firebase. With this product, you can remotely receive logs without connecting mobile to your computer.
To easily get crash logs, you can embed Firebase into your project and enable crash reporting into your flutter project.
So after the subscription, you can go to CrashAnalytics from your Firebase console and be able to see crash logs.
For more information on how to set up Firebase into your flutter application, check here: https://firebase.google.com/docs/flutter/setup
Android studio has a logcat right at the bottom. Although you might see a lot of extra things you don't need, but if a major error occurs in your app it'll show up there. You can also search with the title of your app for more refined results.
One another option in Android studio is to select Run > Flutter Run 'Main.dart' in release mode from top menu. You can see all logs in console. Try putting a break point if you want.
Recently I updated my app by adding a couple of functions. In addition, I recreated the project since I had problems with app support for Android devices below Lollipop. After update and upload on Google Play, I update the app over Google Play on my separate real device (non test device) and it just keeps crashing (by opening it closes right away) without any errors on device. Google Play Console reports under "Crashes" IllegalStateException at
package.d.a (Unknown Source:73). However, the d.a package name is totally unknown for me, because I do not have that in my entire project.
package.MainActivity.onResume (Unknown Source:8). At this 8th I have an Import which would never cause an exception.
I guess that not only me, but some another users, who already updated the app, have also the save problem. However, I just generated a signed apk of my app and installed it on my real device (non test device), but for this step I needed to remove the app downloaded from Google Play before manual installing. This approach worked and the app does not crashes any more and works properly without problems.
I think, for users who download the app for the first time ever, this problem does not occur for them. How can I find out the cause of the problem?
Here is my app. If the app works for those who downloaded it after reading this post, please send me some short feedback using the built in Send Feedback in the app just to ensure the app functionality.
If you use proguard you need to add the mapping file to your console
If you use ProGuard to optimize and obfuscate your APK files, you can upload a ProGuard mapping file for each version of your app on the Play Console to deobfuscate your crash stack traces and help you better analyze your app's crashes.
Important: Only ProGuard mapping files are supported for deobfuscation.
Do you use any kind of testing with your app? You can try testing it on Firebase Test Lab, especially the Robo Tests, which try to crawl and use all app interactions.
They can help in detecting any faults or issues early on before releasing the app to the market.
You can also use Firebase's Crashlytics to detect crashes and get more details on the crashes.
Hope this helps.
I found the solution. In my case, I just needed to clear the cash of the app in the device settings. It helped to run the app again. However, there could be another solutions or even problems with such kind of app crash.
My android app has entered beta and a tester is encountering the android reporting the app has crashed. Is there a recommended approach for collecting logcat entries and emailing or moving the event off device? Testers have no access to the source code or android dev studio.
Have seen android report crash dumps and offer the choice to download the dump off device. Any pointers to an approach for this?
Use an analytics tool like crashlytics. When crashes occur they are logged in its dashboard, here you can view the stacktrace for the crash just like you would in the logcat.
I hope title itself says what my question is.
My app is crashing at very rare scenarios like nearly 1 out of 100 times.
I am not using any crash log tools and not logging exception causes.
I want to know does Android system maintains any crash log report when the app is crashed either in System level or in App level.
Thanks
Android system maintains a crash report and sends to the developer but the user has to allow this.
And then you can check it here in Android Developer Console:
As an alternative you can use third-party loggers like Liquid, Crashlytics (mention in another answer), Splunk MINT Express (ex-Bugsense) or any other from this links
I don't think so, if you can't debug it in real time with the IDE (DDMS and LogCat), you must use Crashlytics or any other similar tool.
I use it in all my apps, it is very useful.