CocoaPods 在 Flutter 项目中找不到 pod“FirebaseCore”的兼容版本

Question

[!] CocoaPods could not find compatible versions for pod "FirebaseCore":
      In Podfile:
        firebase_core (from `.symlinks/plugins/firebase_core/ios`) was resolved to 2.4.0, which depends on
          Firebase/CoreOnly (= 10.3.0) was resolved to 10.3.0, which depends on
            FirebaseCore (= 10.3.0)

        google_ml_kit (from `.symlinks/plugins/google_ml_kit/ios`) was resolved to 0.6.0, which depends on
          GoogleMLKit/LinkFirebase (~> 2.2.0) was resolved to 2.2.0, which depends on
            MLKitLinkFirebase (~> 1.3.0) was resolved to 1.3.0, which depends on
              FirebaseCore (~> 8.0)

I am getting this error after added firebase to my project.

Here is my PodFile

# Uncomment this line to define a global platform for your project
platform :ios, '11.0'

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
  'Debug' => :debug,
  'Profile' => :release,
  'Release' => :release,
}

def flutter_root
  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
  unless File.exist?(generated_xcode_build_settings_path)
    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
  end

  File.foreach(generated_xcode_build_settings_path) do |line|
    matches = line.match(/FLUTTER_ROOT\=(.*)/)
    return matches[1].strip if matches
  end
  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
end

require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

target 'Runner' do

  use_frameworks!
  use_modular_headers!

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
  end
end

I've tried several steps to fix:

• flutter clean
• flutter build ios
• pod install
• pod update
• pod repo update
• pod install --repo-update

And also:

• delete Pods
• delete Podfile.lock
• Then pod install

It doesn't fix the error

Answer 1

It might be some dependencies is missing. Have you tried flutter pub add firebase_core , flutter pub get or flutter pub upgrade