flutter podfile関連　環境構築メモ

#cache消しとく
```
sudo rm -rf cache
```

そしたらいつも通りする

```
flutter pub upgrade
flutter pub get
flutter run
```

#きちんとpod installする

###出てくるエラー
```
Error output from CocoaPods:
↳

[!] Automatically assigning platform `iOS` with version `8.0` on target `Runner` because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syntax/podfile.html#platform`.

Error: CocoaPods's specs repository is too out-of-date to satisfy dependencies.
To update the CocoaPods specs, run:
  pod repo update
```

###対処①
1.Go to /ios folder inside your Project.
2.Delete Podfile.lock
3.Run pod install --repo-update
4.Run flutter clean
5.Once complete, rebuild your Flutter application: flutter run

https://stackoverflow.com/questions/64443888/flutter-cocoapodss-specs-repository-is-too-out-of-date-to-satisfy-dependencies


###出てくるエラー
```
[!] CocoaPods could not find compatible versions for pod "sqflite":
  In Podfile:
    sqflite (from `.symlinks/plugins/sqflite/ios`)

Specs satisfying the `sqflite (from `.symlinks/plugins/sqflite/ios`)` dependency were found, but they required a higher minimum deployment target.

[!] Automatically assigning platform `iOS` with version `8.0` on target `Runner` because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syn
```

###対処②
platform : ios, '13.0'にしてpod install 実行

https://github.com/fluttercommunity/flutter_workmanager/issues/106

```dart:podfile
# Uncomment this line to define a global platform for your project
platform :ios, '13.0'

# 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
```

###対処③
ios>Flutter>Flutter.framework>Release.xcconfigで以下の２行を追加

```
#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"
```

```dart:Release.xcconfig
#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
#include "Generated.xcconfig"
#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"
```


https://github.com/flutter/flutter/issues/66222