[iOS] Crash on app launch by "dyld: Library not loaded"

[nukka123]

Overview (Required)

• [iOS] Crash on app launch by "dyld: Library not loaded".

Steps To Reproduce

1. Modify the xode project Signing settings.
   • Tream: my Personal Team account.
   • Bundle Identifier: nukka123.io.github.droidkaigi.confsched2020.DroidKaigi-2020
2. Build and Run to real iPhone device.
3. Crash on app launch by "dyld: Library not loaded".

Expected behavior

Launch without crash.

Env:

• Device: iPhone11 pro
• OS: iOS 13.3.1
• Xcode: 13.1.1
• master branch, 369fcd9

Log

dyld: Library not loaded: @rpath/MDFInternationalization.framework/MDFInternationalization
  Referenced from: /private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/DroidKaigi 2020
  Reason: no suitable image found.  Did find:
	/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization: code signature invalid for '/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization'

	/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization: code signature invalid for '/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization'

	/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization: stat() failed with errno=1
	/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization: code signature invalid for '/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization'

	/private/var/containers/Bundle/Application/3536DB72-9CBD-4A1D-82A2-43DA43246E87/DroidKaigi 2020.app/Frameworks/MDFInternationalization.framework/MDFInternationalization: stat() failed with errno=1

Similar (same?) issues

• Flutter: Running new app on actual iOS (13.3.1) device crashes on startup: code signature invalid for "path/to/Flutter.framework/Flutter"
• Alamofire: iOS 13.3.1 dyld: Library not loaded

[ry-itto]

@nukka123
Can you try cleaning Derived Data directory? 🙏
Certainly, I fixed by this.

[nukka123]

@ry-itto
I've tried again with complete clean the Derived Data directory.
But it could not to resolve... 😢

[ry-itto]

Hmm...
I don't have any idea. Sorry... I encountered this problem some times, I think this is cache problem, but this may not... 🤔

[nukka123]

このコメントによれば、iOS 13.3.1 の問題のようです。(あるいはXcode?)

This is an issue with iOS 13.3.1 on a real device, not the simulator. This should not impact apps that are already distributed to the App Store (meaning: your customers are not hitting this crash).
...
You can:
Use a non-Personal Team provisioning profile.
Run on the 13.3.1 simulator.
Test on a real iOS device running 13.3 or lower.

[waleedafifi90]

This may fix your problem
1- Comment use_frameworks!
2- Use use_modular_headers!
3- Add ,:modular_headers => true after each pod like this
pod 'Firebase',:modular_headers => true
all of this in Pod file it's work for me I am running iOS 13.3.1 on iPhone 7, Xcode 11.3.1
Hope it's help ^_^

[developeranshul1986]

When I commented this line
use_modular_headers!

after that I am getting the error like below
3 warnings generated.
/Users/xyz/Documents/FlutterSDK/flutter/.pub-cache/hosted/pub.dartla
ng.org/app_settings-4.0.4/ios/Classes/AppSettingsPlugin.m:2:9: fatal error:
'app_settings/app_settings-Swift.h' file not found
#import <app_settings/app_settings-Swift.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
note: Using new build system
note: Planning build
note: Constructing build description