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I just switched to Xcode 16 and iOS 18 and running my app on the device started producing following runtime warnings on every app start:
/Pods/FirebaseCrashlytics/Crashlytics/Crashlytics/FIRCLSUserDefaults/FIRCLSUserDefaults.m:288 Performing I/O on the main thread can cause slow launches.
This is known to cause slow launches for your users.
/Users/alexvasenin/Documents/MeteorActive/Pods.nosync/FirebaseCore/FirebaseCore/Sources/FIRApp.m:348 Performing I/O on the main thread can cause slow launches.
This is known to cause slow launches for your users.
The first warning appears one time while the second one is repeated 6 times. All of the stack traces go through [FIRApp configure]. I did a quick test and indeed I found a call to FirebaseApp.configure() takes about 400-600ms on iPhone 15. However, I found if the debugger is NOT attached, the call takes only ~30ms, so it looks like the multiple stack unwinding takes the most time.
Having 7 runtime warnings without a good reason is bad. Please help to solve or silence this warnings.
Reproducing the issue
No response
Firebase SDK Version
10.2.0
Xcode Version
16.0
Installation Method
CocoaPods
Firebase Product(s)
Analytics, Crashlytics, Performance
Targeted Platforms
iOS
Relevant Log Output
No response
If using Swift Package Manager, the project's Package.resolved
Expand Package.resolved snippet
Replace this line with the contents of your Package.resolved.
If using CocoaPods, the project's Podfile.lock
Expand Podfile.lock snippet
Replace this line with the contents of your Podfile.lock!
The text was updated successfully, but these errors were encountered:
Description
I just switched to Xcode 16 and iOS 18 and running my app on the device started producing following runtime warnings on every app start:
The first warning appears one time while the second one is repeated 6 times. All of the stack traces go through
[FIRApp configure]
. I did a quick test and indeed I found a call toFirebaseApp.configure()
takes about 400-600ms on iPhone 15. However, I found if the debugger is NOT attached, the call takes only ~30ms, so it looks like the multiple stack unwinding takes the most time.Having 7 runtime warnings without a good reason is bad. Please help to solve or silence this warnings.
Reproducing the issue
No response
Firebase SDK Version
10.2.0
Xcode Version
16.0
Installation Method
CocoaPods
Firebase Product(s)
Analytics, Crashlytics, Performance
Targeted Platforms
iOS
Relevant Log Output
No response
If using Swift Package Manager, the project's Package.resolved
Expand
Package.resolved
snippetReplace this line with the contents of your Package.resolved.
If using CocoaPods, the project's Podfile.lock
Expand
Podfile.lock
snippetReplace this line with the contents of your Podfile.lock!
The text was updated successfully, but these errors were encountered: