having the same issue

Posible duplicated #8780

i have exactly the same scenario.. just update xcode.. and the project get broken with that issue, any suggestion?

@tuliodiaz @wkjesus @iMarwan-k @kieranbarlow this is a cocoapod issue.
It can be fixed by adding

post_install do |pi|
    pi.pods_project.targets.each do |t|
        t.build_configurations.each do |config|
            config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '9.0'
        end
    end
end

to your Podfile (create if not exist) in your app App_Resources/iOS/Podfile. Remember to remove platforms before building.

@rigor789 this can done automatically by the cli.

Better to delete it, then to set it to 9.0. Then it will inherit the project/workspace deployment taget (which is set in build.xcconfig). Source: https://www.jessesquires.com/blog/2020/07/20/xcode-12-drops-support-for-ios-8-fix-for-cocoapods/

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
    end
  end
end

@asharghi good idea, like it!

same problem here

It works for me if I place the following in build.xconfig

EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_simulator__NATIVE_ARCH_64_BIT_x86_64=arm64 arm64e armv7 armv7s armv6 armv8
EXCLUDED_ARCHS=$(inherited) $(EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_$(EFFECTIVE_PLATFORM_SUFFIX)__NATIVE_ARCH_64_BIT_$(NATIVE_ARCH_64_BIT))

Courtesy of Vidhi Gupta on the NativeScript Slack.

It works for me if I place the following in build.xconfig

EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_simulator__NATIVE_ARCH_64_BIT_x86_64=arm64 arm64e armv7 armv7s armv6 armv8
EXCLUDED_ARCHS=$(inherited) $(EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_$(EFFECTIVE_PLATFORM_SUFFIX)__NATIVE_ARCH_64_BIT_$(NATIVE_ARCH_64_BIT))

Courtesy of Vidhi Gupta on the NativeScript Slack.

This works with me, thanks

Better to delete it, then to set it to 9.0. Then it will inherit the project/workspace deployment taget (which is set in build.xcconfig). Source: https://www.jessesquires.com/blog/2020/07/20/xcode-12-drops-support-for-ios-8-fix-for-cocoapods/

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
    end
  end
end

It works for me if I place the following in build.xconfig

EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_simulator__NATIVE_ARCH_64_BIT_x86_64=arm64 arm64e armv7 armv7s armv6 armv8
EXCLUDED_ARCHS=$(inherited) $(EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_$(EFFECTIVE_PLATFORM_SUFFIX)__NATIVE_ARCH_64_BIT_$(NATIVE_ARCH_64_BIT))

Courtesy of Vidhi Gupta on the NativeScript Slack.

I had to include above two fixes to make build working again

[Solved] The iOS Simulator deployment targets is set to 8.0, but the range of supported deployment target version for this platform is 9.0 to 14.1