Flutter AMSupportURLConnectionDelegate is implemented in both ?? Error
Solution 1
I was getting this error
Class AMSupportURLConnectionDelegate is implemented in both /usr/lib/libauthinstall.dylib
NOTE:
Try this first if you have updated to flutter 2.10 from <=2.8
flutter pub upgrade
Solution: Please open podfile and update with this script
installer.pods_project.build_configurations.each do |config|
config.build_settings["EXCLUDED_ARCHS[sdk=iphonesimulator*]"] = "arm64"
end
flutter clean
flutter pub get
cd ios
pod install
or instead of last command you can try below for M1
arch -x86_64 pod install // for M1
Run your app.
Solution 2
I was getting the same "error output from Xcode build" with my M1 macbook recently as well after updating to Flutter 2.x.
I was able to clear this issue on mine by doing the following:
- Change directory to your project's path and sub-directory:
your_project/build/ios/Debug-iphonesimulator/
- Run $ xattr -lr Runner.app
- Run $ xattr -cr Runner.app
Apparently flutter projects have extended attributes in project app bundles containing Finder info which causes an error.
I found these links that helped for reference. https://developer.apple.com/library/archive/qa/qa1940/_index.html https://github.com/flutter/flutter/issues/72492
Miles
I program native mobile apps on Flutter, code python programs, write code on quantum computers (with Qiskit), design objects for my projects on Autodesk's Fusion 360, and make electronic circuits on Eagle. In detail, I program esp8266's on Arduino to create IOT modules for an autonomous house that communicates with the app that I created on Flutter (for mobile) and Amazon's AI, Alexa for voice commands. I use the library Qiskit on python to run circuits that I code on a quantum computer via cloud communication. I have now an official certificate from Qubit by Qubit about that.
Updated on December 27, 2022Comments
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Miles over 1 year
I am facing many issues since I migrated my project to an Apple Silicon mac. I finally managed to reduce the problems but not sure the answer to this.
Running "flutter pub get" in Flutter_the app copy 3... 760ms Launching lib/main.dart on iPhone 11 in debug mode... Running pod install... 986ms Running Xcode build... Xcode build done. 1.5s Failed to build iOS app Error output from Xcode build: ↳ objc[95181]: Class AMSupportURLConnectionDelegate is implemented in both ?? (0x20ba238f0) and ?? (0x1160dc2b8). One of the two will be used. Which one is undefined. objc[95181]: Class AMSupportURLSession is implemented in both ?? (0x20ba23940) and ?? (0x1160dc308). One of the two will be used. Which one is undefined. ** BUILD FAILED ** Xcode's output: ↳ note: Using new build system note: Building targets in parallel note: Planning build note: Constructing build description error: /Users/gorkem/Documents/flutter_workspace/Flutter_the app copy 3/ios/Flutter/Debug.xcconfig: unable to open file (in target "Runner" in project "Runner") (in target 'Runner' from project 'Runner') error: /Users/gorkem/Documents/flutter_workspace/Flutter_the app copy 3/ios/Flutter/Debug.xcconfig: unable to open file (in target "Runner" in project "Runner") (in target 'Runner' from project 'Runner') error: /Users/gorkem/Documents/flutter_workspace/Flutter_the app copy 3/ios/Flutter/Debug.xcconfig: unable to open file (in target "Runner" in project "Runner") (in target 'Runner' from project 'Runner') warning: Unable to read contents of XCFileList '/Target Support Files/Pods-Runner/Pods-Runner-frameworks-Debug-output-files.xcfilelist' (in target 'Runner' from project 'Runner') error: Unable to load contents of file list: '/Target Support Files/Pods-Runner/Pods-Runner-frameworks-Debug-input-files.xcfilelist' (in target 'Runner' from project 'Runner') error: Unable to load contents of file list: '/Target Support Files/Pods-Runner/Pods-Runner-frameworks-Debug-output-files.xcfilelist' (in target 'Runner' from project 'Runner') Could not build the application for the simulator. Error launching application on iPhone 11.
Is there any way to solve this. I am not sure if the problem is even written in there.