Flutter IOS build error - "select a development team in the Signing & Capabilities editor."

Question

The following error is displayed when attempting to build on an IOS device:
As shown in the picture below, the Signing setting in Xcode is well done.
Can you tell me the cause and solution of this?

Could not build the precompiled application for the device.
Error (Xcode): Signing for "GoogleSignIn-GoogleSignIn" requires a development team. Select a development team in the Signing & Capabilities editor.
/Users/home_1/StudioProjects/Example%20Project/app/ios/Pods/Pods.xcodeproj


Error (Xcode): Signing for "DKPhotoGallery-DKPhotoGallery" requires a development team. Select a development team in the Signing & Capabilities editor.
/Users/home_1/StudioProjects/Example%20Project/app/ios/Pods/Pods.xcodeproj


Error (Xcode): Signing for "DKImagePickerController-DKImagePickerController" requires a development team. Select a development team in the Signing & Capabilities editor.
/Users/home_1/StudioProjects/Example%20Project/app/ios/Pods/Pods.xcodeproj


Error (Xcode): Signing for "gRPC-C++-gRPCCertificates-Cpp" requires a development team. Select a development team in the Signing & Capabilities editor.
/Users/home_1/StudioProjects/Example%20Project/app/ios/Pods/Pods.xcodeproj

Answer 1

This happened to me today after switching to Xcode 14. Try adding this to your podfile

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      if config.build_settings['WRAPPER_EXTENSION'] == 'bundle'
        config.build_settings['DEVELOPMENT_TEAM'] = 'YOUR_DEVELOPMENT_TEAM_ID'
      end
    end
  end
end

Don't forget to replace the YOUR_DEVELOPMENT_TEAM_ID with your actual development Team ID which you can find in developer.apple.com

This will permanently fix the issue.

If you don't want to use the Team ID you can do this instead:

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      if target.respond_to?(:product_type) and target.product_type == "com.apple.product-type.bundle"
        target.build_configurations.each do |config|
            config.build_settings['CODE_SIGNING_ALLOWED'] = 'NO'
        end
      end
    end
  end
end

If you have other post_install steps, for example flutter_additional_ios_build_settings(target), make sure to keep them

Answer 2

I'm wondering when Apple is going to launch a new xCode version without breaking anything from previous ones!

Rants aside, this is how I fixed my Flutter project based on previous answers:

Open your awesome_flutter_project/ios/Podfile:

and replace these lines:

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

for:

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    target.build_configurations.each do |config|
      if target.respond_to?(:product_type) and target.product_type == "com.apple.product-type.bundle"
        target.build_configurations.each do |config|
            config.build_settings['CODE_SIGNING_ALLOWED'] = 'NO'
        end
      end
    end
  end
end