Podfile

platform :ios, '10.0'
use_frameworks!
install! 'cocoapods', :deterministic_uuids => false

source 'git@github.com:applicaster/CocoaPods.git'
source 'https://cdn.cocoapods.org/'

pre_install do |installer|
    # workaround for https://github.com/CocoaPods/CocoaPods/issues/3289
    Pod::Installer::Xcode::TargetValidator.send(:define_method, :verify_no_static_framework_transitive_dependencies) {}
end

def shared_pods
    pod 'ZappPlugins'
    pod 'FacebookCore'
    pod 'FacebookLogin'
    pod 'FBSDKCoreKit', '= 4.38.0'
    pod 'FBSDKLoginKit', '= 4.38.0'
end

target 'ZappLoginPluginExample-iOS' do
    shared_pods
end

post_install do |installer|
    installer.pods_project.targets.each do |target|
        target.build_configurations.each do |config|
            config.build_settings['SWIFT_VERSION'] = '5.1'
        end
    end
end