Xcode 12 cocoapods indirect framework dependency missing? - cocoapods

Question

After update to Xcode 12 project would no longer build.
undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_DDLog", referenced from:
objc-class-ref in Bouncer.o
ld: symbol(s) not found for architecture x86_64
DDLog is defined in CocoaLumberjack. which is a dependency of FrameworkA which is a dependency of FrameworkB (the Test Project)
Podspec extract FrameworkA:
Pod::Spec.new do |s|
[...]
s.default_subspec = 'Core'
s.subspec 'Core' do |co|
co.source_files = 'FrameworkA_Objc_DependencyIssue/Classes/**/*'
co.dependency 'CocoaLumberjack', '~> 3.1'
end
end
Podspec extract FrameworkB:
Pod::Spec.new do |s|
[...]
s.source_files = 'FrameworkB_Objc_DependencyIssue/Classes/**/*'
s.dependency 'FrameworkA_Objc_DependencyIssue/Core', '~> 0.1.2'
# s.dependency 'CocoaLumberjack' # Adding direkt dependency fixes problem!
end
This setup does compile with Xcode 11.

Answer 1

It seems that it was a "bug" that this would compile in Xcode 11. Adding the dependency to FrameworkB solves the issue (see comment in podspec extract FramworkB of updated question)

Answer 2

First Way: To do that, navigate to Build Settings of your project and add Any iOS Simulator SDK with value arm64 inside Excluded Architecture
or
If you are using custom XCConfig files, you can simply add this line for excluding simulator architecture.
EXCLUDED_ARCHS[sdk=iphonesimulator*] = arm64
Second Way :
You can manually add the Excluded Architecture in your Pod project's Build Settings, but it will be overwritten when you use pod install.
In place of this, you can add this snippet to your Podfile. It will write the necessary Build Settings every time you run pod install
post_install do |installer|
installer.pods_project.build_configurations.each do |config|
config.build_settings[‘EXCLUDED_ARCHS[sdk=iphonesimulator*]’] = ‘arm64’
end
end
Please try and let me know if it helps