Firebase setup on iOS (Flutter)

Question

I'm trying to setup Firebase on iOS in Flutter by following the original guide, but I get the following message after typing pod install in the terminal:

[!] CocoaPods could not find compatible versions for pod "Firebase/Auth":
  In snapshot (Podfile.lock):
    Firebase/Auth (= 6.34.0, ~> 6.0)

  In Podfile:
    firebase_auth (from `.symlinks/plugins/firebase_auth/ios`) was resolved to 1.4.1, which depends on
      Firebase/Auth (= 8.0.0)


You have either:
 * out-of-date source repos which you can update with `pod repo update` or with `pod install --repo-update`.
 * changed the constraints of dependency `Firebase/Auth` inside your development pod `firebase_auth`.
   You should run `pod update Firebase/Auth` to apply changes you've made.

All I changed in the main.dart file is that I changed the default main function to this:

    Future main() async {
      WidgetsFlutterBinding.ensureInitialized();
      await Firebase.initializeApp();
      runApp(MyApp());
    }

My pubspec.yaml file's relevant part looks like this:

    firebase_storage: ^8.0.3
    cloud_firestore: ^1.0.5
    firebase_auth: ^1.1.0

I choose these numbers based on a video that used null safety, but tried it with several different ones too like the ones that are mentioned here: https://firebase.google.com/docs/flutter/setup#analytics-enabled, and also the latest ones, but the error was the same.

I tried reinstalling cocoapods and did the pod repo update, pod setup, pod install multiple times but the output was the same. In the Podfile, I uncommented the ios version number and changed it to 10 as many sources recommended. I would appreciate your help on this one.

EDIT: This was my original Podfile:

    # Uncomment this line to define a global platform for your project
    platform :ios, '10.0'
    
    # 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

SOLUTION: I changed my Podfile to this:

    platform :ios, '12.0'
    
    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
    
    def flutter_install_ios_plugin_pods(ios_application_path = nil)
      ios_application_path ||= File.dirname(defined_in_file.realpath) if self.respond_to?(:defined_in_file)
      raise 'Could not find iOS application path' unless ios_application_path
    
      symlink_dir = File.expand_path('.symlinks', ios_application_path)
      system('rm', '-rf', symlink_dir) # Avoid the complication of dependencies like FileUtils.
    
      symlink_plugins_dir = File.expand_path('plugins', symlink_dir)
      system('mkdir', '-p', symlink_plugins_dir)
    
      plugins_file = File.join(ios_application_path, '..', '.flutter-plugins-dependencies')
      plugin_pods = flutter_parse_plugins_file(plugins_file)
      plugin_pods.each do |plugin_hash|
        plugin_name = plugin_hash['name']
        plugin_path = plugin_hash['path']
        if (plugin_name && plugin_path)
          symlink = File.join(symlink_plugins_dir, plugin_name)
          File.symlink(plugin_path, symlink)
    
          if plugin_name == 'flutter_ffmpeg'
              pod 'flutter_ffmpeg/full-lts', :path => File.join('.symlinks', 'plugins', plugin_name, 'ios')
          else
              pod plugin_name, :path => File.join('.symlinks', 'plugins', plugin_name, 'ios')
          end
        end
      end
    end
    
    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)
        target.build_configurations.each do |config|
            config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '10.0'
        end
      end
    end

Solution 1

This is my current Podfile setup, you might want to try it:

platform :ios, '12.0'

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

def flutter_install_ios_plugin_pods(ios_application_path = nil)
  ios_application_path ||= File.dirname(defined_in_file.realpath) if self.respond_to?(:defined_in_file)
  raise 'Could not find iOS application path' unless ios_application_path

  symlink_dir = File.expand_path('.symlinks', ios_application_path)
  system('rm', '-rf', symlink_dir) # Avoid the complication of dependencies like FileUtils.

  symlink_plugins_dir = File.expand_path('plugins', symlink_dir)
  system('mkdir', '-p', symlink_plugins_dir)

  plugins_file = File.join(ios_application_path, '..', '.flutter-plugins-dependencies')
  plugin_pods = flutter_parse_plugins_file(plugins_file)
  plugin_pods.each do |plugin_hash|
    plugin_name = plugin_hash['name']
    plugin_path = plugin_hash['path']
    if (plugin_name && plugin_path)
      symlink = File.join(symlink_plugins_dir, plugin_name)
      File.symlink(plugin_path, symlink)

      if plugin_name == 'flutter_ffmpeg'
          pod 'flutter_ffmpeg/full-lts', :path => File.join('.symlinks', 'plugins', plugin_name, 'ios')
      else
          pod plugin_name, :path => File.join('.symlinks', 'plugins', plugin_name, 'ios')
      end
    end
  end
end

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

Solution 2

I had a the same problem solved it simply by changing target to platform :ios, '14.0' in Podfile

then in your project cd ios to your iOS folder - run :

1. rm -rf Pods/ Podfile.lock

2. pod repo update

3. pod install

for M1 Mac Users - run this instead :

1. rm -rf Pods/ Podfile.lock

2. sudo arch -x86_64 gem install ffi

3. arch -x86_64 pod repo update

4. pod install

error should be gone

--

But you might then be left with this last error :

[!] CocoaPods did not set the base configuration of your project because your project already has a custom config set. In order for CocoaPods integration to work at all, please either set the base configurations of the target `Runner` to `Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig` or include the `Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig` in your build configuration (`Flutter/Release.xcconfig`).

Set configurations in Xcode as showed in this StackOverFlow Answer to solve it

Comments

[Mariano Zorrilla]

you're using outdated version of all 3 libraries. Please, check on pub.dev the latest versions in order to make it work correctly and post your "flutter doctor -v" for more details about your setup

[zpouip]

Can you add your Podfile?

[Tamás Pintér]

I mentioned that I also tried with those ones too, and got the same result unfortunately.

[Tamás Pintér]

I edited the original question there you can see my Podfile.

[Hemal Moradiya]

Have you tried pod repo update & pod update?

[Tamás Pintér]

I overwritten my Podfile content with this, deleted the podfile.lock file and then ran pod install. The output was the following: pastebin.com/nAXHt2Cm

[Tamás Pintér]

I added these lines to your version since it gave me those version errors { target.build_configurations.each do |config| config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '9.0' end} and got this error in the output: { Command PhaseScriptExecution failed with a nonzero exit code}

[Tamás Pintér]

This finally solved the problem. I changed my Podfile to the edited one that I am going to put in the original post, and then ran pod repo update and pod update which I am not sure helped me or not. Then it worked after waiting 10 minutes of compiling. Thank you!

[Ara Hussein]

Thanks a lot. I spent about more 2 days to solve that issue and your PodFile solve it.

[Vishak A Kamath]

I'm using the Mac M1 and this solution worked for me.