[react-native] iOS 빌드 에러: Undefined symbols for architecture armv7

[react-native Trouble Shooting]

Problem

> iOS 빌드 에러: Undefined symbols for architecture armv7

Solution

> CxxBridge, DoubleConversion, Folly, GLog를 PodFile에 추가

예시)

# Uncomment the next line to define a global platform for your project
platform :ios, '9.0'
 
target 'reactTest' do
  #Uncomment the next line if you're using Swift or would like to use dynamic frameworks
  #use_frameworks!
  #Pod react-native
  react_native = "../node_modules/react-native"
  pod 'React', :path => react_native, :subspecies => [
  'Core',
  'CxxBridge',
  'DevSupport', # Include this to enable In-App Devmenu if RN >= 0.43
  'RCTText',
  'RCTNetwork',
  'RCTWebSocket', # needed for debugging
  ]
 
  #Pod yoga support for react-native
  pod 'yoga', :path => "#{react_native}/ReactCommon/yoga"
end

참고: https://github.com/facebook/react-native/issues/14925