Flutter-geolocator: Swift-Sprachversionsfehler

Ich kann auch nicht mit der geolocator 2.1.1 und der folgenden flutter Version auf einem iOS-Gerät ausführen/erstellen:

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)

swift --version druckt

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

Ich bin auf einem macOS 10.14.1 .

Ich habe ein neues Flutter-Projekt erstellt, die Berechtigung android.permission.ACCESS_FINE_LOCATION zu AndroidManifest.xml und NSLocationWhenInUseUsageDescription zu info.plist hinzugefügt und geolocator: ^2.1.1 zu pubspec.yaml hinzugefügt

Ich erhalte die folgende Fehlermeldung auf flutter run :

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

Ich habe es zum Laufen gebracht, indem ich Folgendes zu meinem ios/Podfile hinzugefügt habe, wie hier vorgeschlagen.

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

Scheint auch, dass ich die Cocoapod-Version 1.5.3 installiert haben muss. Nicht die neueste 1.6 Beta-Version.

Ja ich auch

Ich habe eine Lösung gefunden,
Geolocator und Onesignal werden gleichzeitig verwendet, es hat einen Fehler,
also nicht verwendeter Geolocator, nur Standort verwenden

Ich verwende Cocoapod Version 1.6. Kann mir jemand sagen, wie ich mit brew auf Cocoapod Version 1.5.3 herunterstufen kann?

Ich kann den Weg dazu nicht finden.

Ich verwende Cocoapod Version 1.6. Kann mir jemand sagen, wie ich mit brew auf Cocoapod Version 1.5.3 herunterstufen kann?

Ich kann den Weg dazu nicht finden.

Ich fand diese Antwort in StackOverflow nützlich für das Downgrade: https://stackoverflow.com/a/20489489/6348097