After update can no longer build to iOS Simulator (Intel Mac)

[cfsbhawkins]

Using latest from pub.dev, I am no longer able to launch my app on Simulator. I am getting the following error, I know there was another ticket that was for M1 mac but mine is on Intel.

I do have the line in my podfile to exclude arm64 because another library needs it to run.

Flutter SDK 3.3.0
datadog_flutter_plugin-1.0.0-rc.2

    import Datadog
           ^
    note: Using new build system
    note: Planning
    note: Build preparation complete
    note: Building targets in dependency order

    Result bundle written to path:
    	/var/folders/ly/jm6ykbqn1m9dy924kw9t7p640000gq/T/flutter_tools.asSNrm/flutter_ios_build_temp_dirF39kdX/temporary_xcresult_bundle


Uncategorized (Xcode): Command CompileSwiftSources failed with a nonzero exit code

Swift Compiler Error (Xcode): Could not find module 'Datadog' for target 'arm64-apple-ios-simulator'; found: x86_64-apple-ios-simulator, at: /Users/bhawkins/Flutter Apps/core-flutter/build/ios/Debug-dev-iphonesimulator/DatadogSDK/Datadog.framework/Modules/Datadog.swiftmodule
/Users/bhawkins/FlutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/datadog_flutter_plugin-1.0.0-rc.2/ios/Classes/DatadogFlutterModels.swift:5:7

Could not build the application for the simulator.
Error launching application on iPhone SE (3rd generation).

[fuzzybinary]

Hi @cfsbhawkins, thanks for reporting this!

I'm very confused why Xcode is looking for the arm64 target on an Intel Mac, but I'll look into it. I didn't update to Flutter 3.3 yesterday, and that may have something to do with it. I'll try to test with it today.

[fuzzybinary]

After a cursory check of Flutter 3.3.0, it appears that is not the issue (the example still builds fine).

Just to be super thorough, can you try a clean build (run flutter clean)? If that still doesn't work, can you send me over the additional lines of your Podfile and I'll try to replicate locally.

[cfsbhawkins]

I will have someone else on my team try my branch on their mac, but I did both flutter clean and nuked and repulled the repo from git and still cant build to iOS Simulator.

edit: someone else on my team tried to run and was unable to run ios simulator with an older build as well. Physical device debugging works just fine in both mine and his computer.

platform :ios, '13.0'

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
  'Debug' => :debug,
  'Profile' => :release,
  'Release' => :release,
}

def flutter_root
  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
  unless File.exist?(generated_xcode_build_settings_path)
    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
  end

  File.foreach(generated_xcode_build_settings_path) do |line|
    matches = line.match(/FLUTTER_ROOT\=(.*)/)
    return matches[1].strip if matches
  end
  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
end

require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

target 'Runner' do
  use_frameworks!
  use_modular_headers!

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
  
  target 'RunnerTests' do
    inherit! :search_paths
  end
end

post_install do |installer|
  installer.pods_project.build_configurations.each do |config|
    config.build_settings["EXCLUDED_ARCHS[sdk=iphonesimulator*]"] = "arm64"
  end

  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)

    target.build_configurations.each do |config|
      config.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
        '$(inherited)',

        ## dart: [PermissionGroup.location, PermissionGroup.locationAlways, PermissionGroup.locationWhenInUse]
        'PERMISSION_LOCATION=1',

        ## dart: PermissionGroup.camera
        'PERMISSION_CAMERA=1',

        ## dart: PermissionGroup.photos
        'PERMISSION_PHOTOS=1',

        ## dart: PermissionGroup.sensors
        'PERMISSION_SENSORS=1',
      ]
    end
  end
end

[cfsbhawkins]

So I think I solved it for anyone who needs it, this fixed it in the as well as allowed mapbox to work:

Source: https://stackoverflow.com/questions/63607158/xcode-building-for-ios-simulator-but-linking-in-an-object-file-built-for-ios-f

config.build_settings['ARCHS[sdk=iphonesimulator]'] = uname -m*

  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)

    target.build_configurations.each do |config|
      config.build_settings['ARCHS[sdk=iphonesimulator*]'] =  `uname -m`
      config.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
        '$(inherited)',

        ## dart: [PermissionGroup.location, PermissionGroup.locationAlways, PermissionGroup.locationWhenInUse]
        'PERMISSION_LOCATION=1',

        ## dart: PermissionGroup.camera
        'PERMISSION_CAMERA=1',

        ## dart: PermissionGroup.photos
        'PERMISSION_PHOTOS=1',

        ## dart: PermissionGroup.sensors
        'PERMISSION_SENSORS=1',
      ]
    end
  end
end