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Xcode – Flutter AMSupportURLConnectionDelegate is implemented in both ?? Error

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.

Tags:

4

Answers


  1. 0

    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

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  2. 0

    Try Selecting For install builds only in the run script in the Build phases tab.

    enter image description here

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  3. 0

    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

    enter image description here

    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.

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  4. 0

    Two things need to change:

    First check the Dependancy for APNs if need to upgrade. Then Change the version in the POD file and then add

    pod ‘GoogleUtilities’
    To the POD target like following:

    target ‘Runner’ do
    use_frameworks!
    use_modular_headers!

    flutter_install_all_macos_pods File.dirname(File.realpath(FILE))
    pod ‘GoogleUtilities’
    end
    .

    After this Run Flutter pug get and Flutter run. It works for me.

    Ref screenshot for POD file

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