Thank you jords - https://developer.apple.com/forums/profile/jords，unfortunately dosen't work 😂
Here is my podfile:
inhibit_all_warnings!
target '<Main App>' do
		use_frameworks!
				pod 'Alamofire' , '4.7.3'									
				.......
	target '<Main App>Tests' do
		inherit! :search_paths
	end
	
	swift_41_pod_targets = ['Spring', 'SQLite.swift','FaveButton']
	
	post_install do | installer |
			
			installer.pods_project.targets.each do |target|
					if target.name == 'Cache'
							target.build_configurations.each do |config|
									level = '-Osize'
									config.build_settings['SWIFT_OPTIMIZATION_LEVEL'] = level
									puts "Set #{target.name} #{config.name} to Optimization Level #{level}"
							end
					end
					if swift_41_pod_targets.include?(target.name)
							
							target.build_configurations.each do |config|
									
									config.build_settings['SWIFT_VERSION'] = '4.1'
									
							end
							
					end
					
			end
			
	end
	target '<Main App>UITests' do
		inherit! :search_paths
	end
end
Eason_Zhang
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Remove all flags from:
Clip Target -> Build Settings -> Linking --> Other Linker Flags
In Clip target if we what to use 3rd party, here are 2 steps:
step1.
Modify Podfile --> usemodularheaders! not use_frameworks!
Like this:
platform :ios, '10.0'
inhibit_all_warnings!
use_modular_headers!
def commonPods
	pod '3rd name'
	......
end
target 'kt_iOS_Clip' do
	inherit! :complete
	use_modular_headers!
	commonPods
end
target 'kt_iOS' do		
		commonPods
		......
		if 'modular' are not supported, use 'use_frameworks!' ......
		use_frameworks!
		pod 'xxxxxx'
end
step2.
Remove all flags from:
Clip Target -> Build Settings -> Linking --> Other Linker Flags
then add -l"SnapKit-library"
same issue,
URL by create with FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: 'appGroupID')
works, not work with UserDefaults(suiteName: 'suiteName')
restart Xcode，worked😳
RAM 10 ~ 18GB
Disk almost 64GB