Xcode 15.2・MacOS(Sonoma14.6.1)バージョンアップにおけるエラー解消

failed to codesign in Flutter and IOS

Uncategorized (Xcode): Command CodeSign failed with a nonzero exit code
(コマンドCodeSignが0以外の終了コードで失敗した)

Error: Entrypoint isn't within the current project

DT_TOOLCHAIN_DIR cannot be used to evaluate LIBRARY_SEARCH_PATHS, use TOOLCHAIN_DIR instead

post_install do |installer|
	xcode_base_version = `xcodebuild -version | grep 'Xcode' | awk '{print $2}' | cut -d . -f 1`
    # 既存のスクリプトなどで以下が記載されている場合、↑の変数だけ追加すればOK
	installer.pods_project.targets.each do |target|
		target.build_configurations.each do |config|
			# Xcode 15以上で動作します(if内を追記)
			if config.base_configuration_reference && Integer(xcode_base_version) >= 15
				xcconfig_path = config.base_configuration_reference.real_path
				xcconfig = File.read(xcconfig_path)
				xcconfig_mod = xcconfig.gsub(/DT_TOOLCHAIN_DIR/, "TOOLCHAIN_DIR")
				File.open(xcconfig_path, "w") { |file| file << xcconfig_mod }
			end
		end
	end
end

flutter/flutter.h file not found