CocoaPods could not find compatible versions for pod "Firebase/CoreOnly"

Question

I've update my flutter package to the last versions and now IOS doesn't work anymore.

When I try to update the pods it's shows this error:

    [!] CocoaPods could not find compatible versions for pod "Firebase/CoreOnly":     In Podfile:     cloud_firestore (from `.symlinks/plugins/cloud_firestore/ios`) was resolved to 0.0.1, which depends on     Firebase/Firestore (~> 6.0) was resolved to 6.0.0, which depends on     Firebase/CoreOnly (= 6.0.0)      cloud_functions (from `.symlinks/plugins/cloud_functions/ios`) was resolved to 0.0.1, which depends on     Firebase/Functions (~> 5.18) was resolved to 5.18.0, which depends on     Firebase/CoreOnly (= 5.18.0) 

Here my pubspec.yaml (Firebase related):

firebase_core: "^0.4.0" firebase_auth: "^0.11.0" firebase_analytics: "^3.0.0"   cloud_firestore: "^0.11.0+1" cloud_functions: "^0.3.0" firebase_storage: "^3.0.0" firebase_messaging: "^5.0.1" 

I've made various steps to try to fix:

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

I've set platform :ios, '12.1' in Podfile and in Xcode as build target but nothing come back to works.

Here my podfile:

# Uncomment this line to define a global platform for your project platform :ios, '12.1'  # CocoaPods analytics sends network stats synchronously affecting flutter build latency. ENV['COCOAPODS_DISABLE_STATS'] = 'true'  project 'Runner', {   'Debug' => :debug,   'Profile' => :release,   'Release' => :release, }  def parse_KV_file(file, separator='=')   file_abs_path = File.expand_path(file)   if !File.exists? file_abs_path     return [];   end   pods_ary = []   skip_line_start_symbols = ["#", "/"]   File.foreach(file_abs_path) { |line|       next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }       plugin = line.split(pattern=separator)       if plugin.length == 2         podname = plugin[0].strip()         path = plugin[1].strip()         podpath = File.expand_path("#{path}", file_abs_path)         pods_ary.push({:name => podname, :path => podpath});       else         puts "Invalid plugin specification: #{line}"       end   }   return pods_ary end  target 'Runner' do   use_frameworks!    # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock   # referring to absolute paths on developers' machines.   system('rm -rf .symlinks')   system('mkdir -p .symlinks/plugins')    # Flutter Pods   generated_xcode_build_settings = parse_KV_file('./Flutter/Generated.xcconfig')   if generated_xcode_build_settings.empty?     puts "Generated.xcconfig must exist. If you're running pod install manually, make sure flutter packages get is executed first."   end   generated_xcode_build_settings.map { |p|     if p[:name] == 'FLUTTER_FRAMEWORK_DIR'       symlink = File.join('.symlinks', 'flutter')       File.symlink(File.dirname(p[:path]), symlink)       pod 'Flutter', :path => File.join(symlink, File.basename(p[:path]))     end   }    # Plugin Pods   plugin_pods = parse_KV_file('../.flutter-plugins')   plugin_pods.map { |p|     symlink = File.join('.symlinks', 'plugins', p[:name])     File.symlink(p[:path], symlink)     pod p[:name], :path => File.join(symlink, 'ios')   } end  post_install do |installer|   installer.pods_project.targets.each do |target|     target.build_configurations.each do |config|       config.build_settings['ENABLE_BITCODE'] = 'NO'     end   end end 

Answer 1

Try calling pod repo update

if the issue is not fixed

delete the Podfile.lock in the root directory, after that run pod install

Answer 2

Edit the minimum ios version in the podfile then run pod install.

Changing platform :ios, '9.0' to platform :ios, '10.0' then running pod install fixed it for me.