Flutter-geolocator: Swift 언어 버전 오류

또한 iOS 기기에서 geolocator 2.1.1 및 다음 flutter 버전을 사용하여 실행/빌드할 수 없습니다.

Flutter 1.0.0 • channel beta • https://github.com/flutter/flutter.git
Framework • revision 5391447fae (5 weeks ago) • 2018-11-29 19:41:26 -0800
Engine • revision 7375a0f414
Tools • Dart 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

신속한 --버전 인쇄

Apple Swift version 4.2.1 (swiftlang-1000.11.42 clang-1000.11.45.1)
Target: x86_64-apple-darwin18.2.0

저는 macOS 10.14.1 입니다.

새 Flutter 프로젝트를 만들고 AndroidManifest.xml 에 android.permission.ACCESS_FINE_LOCATION 권한을 추가하고 info.plist 에 NSLocationWhenInUseUsageDescription $ 권한을 추가하고 pubspec.yaml 에 geolocator: ^2.1.1 를 추가했습니다. pubspec.yaml .

flutter run 에서 다음 오류가 발생합니다.

Running pod install...                                       0.9s
CocoaPods' output:
↳
      Preparing

    Analyzing dependencies

    Inspecting targets to integrate
      Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)

    Finding Podfile changes
      A geolocator
      A google_api_availability
      A permission_handler
      - Flutter
      - path_provider
      - shared_preferences

    Fetching external sources
    -> Fetching podspec for `Flutter` from `.symlinks/flutter/ios`
    -> Fetching podspec for `geolocator` from `.symlinks/plugins/geolocator/ios`
    -> Fetching podspec for `google_api_availability` from `.symlinks/plugins/google_api_availability/ios`
    -> Fetching podspec for `path_provider` from `.symlinks/plugins/path_provider/ios`
    -> Fetching podspec for `permission_handler` from `.symlinks/plugins/permission_handler/ios`
    -> Fetching podspec for `shared_preferences` from `.symlinks/plugins/shared_preferences/ios`

    Resolving dependencies of `Podfile`

    Comparing resolved specification to the sandbox manifest
      A Flutter
      A geolocator
      A google_api_availability
      A path_provider
      A permission_handler
      A shared_preferences

    Downloading dependencies

    -> Installing Flutter (1.0.0)

    -> Installing geolocator (2.1.1)

    -> Installing google_api_availability (1.0.4)

    -> Installing path_provider (0.0.1)

    -> Installing permission_handler (2.1.2)

    -> Installing shared_preferences (0.0.1)
      - Running pre install hooks
    [!] Unable to determine Swift version for the following pods:

     - `geolocator` does not specify a Swift version and none of the targets (`Runner`) integrating it have
     the `SWIFT_VERSION` attribute set. Please contact the author or set the `SWIFT_VERSION` attribute in at
     least one of the targets that integrate this pod.\n- `google_api_availability` does not specify a Swift
     version and none of the targets (`Runner`) integrating it have the `SWIFT_VERSION` attribute set.
     Please contact the author or set the `SWIFT_VERSION` attribute in at least one of the targets that
     integrate this pod.\n- `permission_handler` does not specify a Swift version and none of the targets
     (`Runner`) integrating it have the `SWIFT_VERSION` attribute set. Please contact the author or set the
     `SWIFT_VERSION` attribute in at least one of the targets that integrate this pod.

    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.0.beta.1/lib/cocoapods/installer/xcode/target_validator.rb:1
    15:in `verify_swift_pods_swift_version'
    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.0.beta.1/lib/cocoapods/installer/xcode/target_validator.rb:3
    7:in `validate!'
    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.0.beta.1/lib/cocoapods/installer.rb:443:in
    `validate_targets'
    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.0.beta.1/lib/cocoapods/installer.rb:124:in `install!'
    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.0.beta.1/lib/cocoapods/command/install.rb:48:in `run'
    /Library/Ruby/Gems/2.3.0/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.0.beta.1/lib/cocoapods/command.rb:52:in `run'
    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.0.beta.1/bin/pod:55:in `<top (required)>'
    /usr/local/bin/pod:22:in `load'
    /usr/local/bin/pod:22:in `<main>'

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 running pod install

여기에 제안된 대로 ios/Podfile 다음을 추가하여 작동하게 했습니다.

target 'Runner' do
  use_frameworks!  # required
  ...
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['SWIFT_VERSION'] = '4.2'  # required
      config.build_settings['ENABLE_BITCODE'] = 'NO'
    end
  end
end

또한 Cocoapod 버전 1.5.3 이 설치되어 있어야 합니다. 최신 1.6 베타 버전이 아닙니다.

네 저도요

나는 해결책을 찾았고,
geolocator와 onesignal을 동시에 사용하면 오류가 발생하고,
따라서 위치 정보를 사용하지 않고 위치만 사용합니다.

저는 Cocoapod 버전 1.6을 사용 중입니다. brew를 사용하여 Cocoapod 버전 1.5.3으로 다운그레이드하는 방법을 알려주실 수 있습니까?

이 방법을 찾을 수 없습니다.

저는 Cocoapod 버전 1.6을 사용 중입니다. brew를 사용하여 Cocoapod 버전 1.5.3으로 다운그레이드하는 방법을 알려주실 수 있습니까?

이 방법을 찾을 수 없습니다.

StackOverflow에서 다운그레이드에 유용한 이 답변을 찾았습니다. https://stackoverflow.com/a/20489489/6348097