No podspec found for `React-Core` in `../node_modules/react-native/React`

Question

I'm using React Native. I get this issue when I try to upload pods. I've successfully installed node_modules, but I'm getting this problem. What is the problem? If we delete the package-lock.json and node_modules folder, I reinstalled npm. But I'm having this problem when I'm doing pod install.

platform :ios, '9.0'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'

target '...' do

  # use_frameworks!

  pod 'React', :path => '../node_modules/react-native/'
  pod 'React-Core', :path => '../node_modules/react-native/React'
  pod 'React-DevSupport', :path => '../node_modules/react-native/React'
  pod 'React-RCTActionSheet', :path => '../node_modules/react-native/Libraries/ActionSheetIOS'
  pod 'React-RCTAnimation', :path => '../node_modules/react-native/Libraries/NativeAnimation'
  pod 'React-RCTBlob', :path => '../node_modules/react-native/Libraries/Blob'
  pod 'React-RCTImage', :path => '../node_modules/react-native/Libraries/Image'
  pod 'React-RCTLinking', :path => '../node_modules/react-native/Libraries/LinkingIOS'
  pod 'React-RCTNetwork', :path => '../node_modules/react-native/Libraries/Network'
  pod 'React-RCTSettings', :path => '../node_modules/react-native/Libraries/Settings'
  pod 'React-RCTText', :path => '../node_modules/react-native/Libraries/Text'
  pod 'React-RCTVibration', :path => '../node_modules/react-native/Libraries/Vibration'
  pod 'React-RCTWebSocket', :path => '../node_modules/react-native/Libraries/WebSocket'
  pod 'React-cxxreact', :path => '../node_modules/react-native/ReactCommon/cxxreact'
  pod 'React-jsi', :path => '../node_modules/react-native/ReactCommon/jsi'
  pod 'React-jsiexecutor', :path => '../node_modules/react-native/ReactCommon/jsiexecutor'
  pod 'React-jsinspector', :path => '../node_modules/react-native/ReactCommon/jsinspector'
  pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'
  pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
  pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'
  pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'

  # Required by RNFirebase
  pod 'Firebase/Core', '~> 6.8.1'

  # [OPTIONAL PODS] - comment out pods for firebase products you won't be using.
  # pod 'Firebase/AdMob', '~> 6.8.1'
  pod 'Firebase/Auth', '~> 6.8.1'
  pod 'Firebase/Database', '~> 6.8.1'
  pod 'Firebase/Functions', '~> 6.8.1'
  pod 'Firebase/DynamicLinks', '~> 6.8.1'
  pod 'Firebase/Firestore', '~> 6.8.1'
  pod 'Firebase/Messaging', '~> 6.8.1'
  pod 'Firebase/RemoteConfig', '~> 6.8.1'
  pod 'Firebase/Storage', '~> 6.8.1'
  pod 'Firebase/Performance', '~> 6.8.1'
  pod 'Fabric', '~> 1.10.2'
  pod 'Crashlytics', '~> 3.14.0'


  target '..' do
    inherit! :search_paths
    # Pods for testing
  end

  use_native_modules!

end

target '...-tvOS' do
  # Uncomment the next line if you're using Swift or would like to use dynamic frameworks
  # use_frameworks!

  # Pods for ..-tvOS

  target 'DeliveryApp-tvOSTests' do
    inherit! :search_paths
    # Pods for testing
  end

end

Answer 1

Podspec was moved from

../node_modules/react-native/React

to

../node_modules/react-native

So update the line

pod 'React-Core', :path => '../node_modules/react-native/React'

to

pod 'React-Core', :path => '../node_modules/react-native'

Please check it here depend on your react-native version https://react-native-community.github.io/upgrade-helper/?from=0.60.6&to=0.61.4

Answer 2

This error occurred as Podspec was moved to

../node_modules/react-native

In order to solve this issue paste the following code in your Podfile. inside your target

 # Pods for RnDiffApp
  pod 'FBLazyVector', :path => "../node_modules/react-native/Libraries/FBLazyVector"
  pod 'FBReactNativeSpec', :path => "../node_modules/react-native/Libraries/FBReactNativeSpec"
  pod 'RCTRequired', :path => "../node_modules/react-native/Libraries/RCTRequired"
  pod 'RCTTypeSafety', :path => "../node_modules/react-native/Libraries/TypeSafety"
  pod 'React', :path => '../node_modules/react-native/'
  pod 'React-Core', :path => '../node_modules/react-native/'
  pod 'React-CoreModules', :path => '../node_modules/react-native/React/CoreModules'
  pod 'React-Core/DevSupport', :path => '../node_modules/react-native/'
  pod 'React-RCTActionSheet', :path => '../node_modules/react-native/Libraries/ActionSheetIOS'
  pod 'React-RCTAnimation', :path => '../node_modules/react-native/Libraries/NativeAnimation'
  pod 'React-RCTBlob', :path => '../node_modules/react-native/Libraries/Blob'
  pod 'React-RCTImage', :path => '../node_modules/react-native/Libraries/Image'
  pod 'React-RCTLinking', :path => '../node_modules/react-native/Libraries/LinkingIOS'
  pod 'React-RCTNetwork', :path => '../node_modules/react-native/Libraries/Network'
  pod 'React-RCTSettings', :path => '../node_modules/react-native/Libraries/Settings'
  pod 'React-RCTText', :path => '../node_modules/react-native/Libraries/Text'
  pod 'React-RCTVibration', :path => '../node_modules/react-native/Libraries/Vibration'
  pod 'React-Core/RCTWebSocket', :path => '../node_modules/react-native/'

  pod 'React-cxxreact', :path => '../node_modules/react-native/ReactCommon/cxxreact'
  pod 'React-jsi', :path => '../node_modules/react-native/ReactCommon/jsi'
  pod 'React-jsiexecutor', :path => '../node_modules/react-native/ReactCommon/jsiexecutor'
  pod 'React-jsinspector', :path => '../node_modules/react-native/ReactCommon/jsinspector'
  pod 'ReactCommon/callinvoker', :path => "../node_modules/react-native/ReactCommon"
  pod 'ReactCommon/turbomodule/core', :path => "../node_modules/react-native/ReactCommon"
  pod 'Yoga', :path => '../node_modules/react-native/ReactCommon/yoga'

  pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
  pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'
  pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'

I've taken reference from RnDiffApp/ios/Podfile

Make sure not to remove your existing added modules in Podfile.