Cocoapods: pod install and pod update failing

[i-pip]

Command

/usr/local/bin/pod install

Report

• Deleted node_modules folder in react native app and ran npm install

• Expected CocoaPods to install pods

• pod install failed.

Stack

   CocoaPods : 1.3.1
        Ruby : ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]
    RubyGems : 2.0.14.1
        Host : Mac OS X 10.12.6 (16G29)
       Xcode : 9.0 (9A235)
         Git : git version 2.13.5 (Apple Git-94)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ 9f067af88efb018670a0d6bf8a71632800a95c7c

Plugins

cocoapods-deintegrate : 1.0.1
cocoapods-plugins     : 1.0.0
cocoapods-search      : 1.0.0
cocoapods-stats       : 1.0.0
cocoapods-trunk       : 1.3.0
cocoapods-try         : 1.1.0

Podfile

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '9.0'

target 'getapro' do
  pod 'ExpoKit',
    :git => "http://github.com/expo/expo.git",
    :tag => "ios/1.20.5",
    :subspecs => [
      "Core",
      "CPP"
    ]

  pod 'React',
    :path => "../node_modules/react-native",
    :subspecs => [
      "Core",
      "ART",
      "RCTActionSheet",
      "RCTAnimation",
      "RCTCameraRoll",
      "RCTGeolocation",
      "RCTImage",
      "RCTNetwork",
      "RCTText",
      "RCTVibration",
      "RCTWebSocket",
      "DevSupport",
      "CxxBridge"
    ]
  pod 'Yoga',
    :path => "../node_modules/react-native/ReactCommon/yoga"
  pod 'DoubleConversion',
    :podspec => "../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec",
    :inhibit_warnings => true
  pod 'Folly',
    :podspec => "../node_modules/react-native/third-party-podspecs/Folly.podspec",
    :inhibit_warnings => true
  pod 'GLog',
    :podspec => "../node_modules/react-native/third-party-podspecs/GLog.podspec",
    :inhibit_warnings => true


  post_install do |installer|
    installer.pods_project.main_group.tab_width = '2';
    installer.pods_project.main_group.indent_width = '2';

    installer.pod_targets.each do |target|

    if target.pod_name == 'ExpoKit'
      target.native_target.build_configurations.each do |config|
        config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= ['$(inherited)']
        config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] << 'EX_DETACHED=1'
        # needed for GoogleMaps 2.x
        config.build_settings['FRAMEWORK_SEARCH_PATHS'] ||= []
        config.build_settings['FRAMEWORK_SEARCH_PATHS'] << '${PODS_ROOT}/GoogleMaps/Base/Frameworks'
        config.build_settings['FRAMEWORK_SEARCH_PATHS'] << '${PODS_ROOT}/GoogleMaps/Maps/Frameworks'
      end
    end


    # Build React Native with RCT_DEV enabled
    next unless target.pod_name == 'React'
    target.native_target.build_configurations.each do |config|
      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= ['$(inherited)']
      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] << 'RCT_DEV=1'
    end

    end
  end
end

Error

`` ArgumentError - Illformed requirement"https://github.com/expo/react-native/archive/sdk-21.0.0.tar.gz.React"`

[dnkoutso]

@doc-phily can you provide a project with the full local pods as well? I cannot even attempt to reproduce because of:

  pod 'Yoga',
    :path => "../node_modules/react-native/ReactCommon/yoga"
  pod 'DoubleConversion',
    :podspec => "../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec",
    :inhibit_warnings => true
  pod 'Folly',
    :podspec => "../node_modules/react-native/third-party-podspecs/Folly.podspec",
    :inhibit_warnings => true
  pod 'GLog',
    :podspec => "../node_modules/react-native/third-party-podspecs/GLog.podspec",
    :inhibit_warnings => true

Please include a sample project or the actual project you are using.

[i-pip]

This seems to be a yarn issue. When I run rm package-lock.json yarn.lock and rm -rf node_modules then run npm install the issues seems to be fixed. pod update works.
@dnkoutso Thanks for the prompt response, I will close this issue now.