CocoaPods 在 Flutter 項目中找不到 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)

將 firebase 添加到我的項目后出現此錯誤。

這是我的 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

我嘗試了幾個步驟來修復：

• flutter 清潔
• flutter 構建 ios
• 吊艙安裝
• 吊艙更新
• pod 回購更新
• pod 安裝 --repo-update

並且：

• 刪除 Pod
• 刪除 Podfile.lock
• 然后pod安裝

它不能修復錯誤

Answer 1

可能缺少某些依賴項。 您是否嘗試過flutter pub add firebase_core 、 flutter pub get或flutter pub upgrade