flutterでのPodinstallがうまくいかない

Question

flutterでのアプリのビルドがうまくいきません。
https://pub.dev/packages/video_player_360
こちらのライブラリを使用しているのですが、
Androidではうまくいったのですが、iOSでテストしたところ下記のようなエラーで詰まっております。

Launching lib/main.dart on iPhone SE (2nd generation) in debug mode...
Running pod install...                                              1.9s
CocoaPods' output:
↳
      Preparing

    Analyzing dependencies

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

    Fetching external sources
    -> Fetching podspec for `Flutter` from `Flutter`
    -> Fetching podspec for `video_player_360` from `.symlinks/plugins/video_player_360/ios`

    Resolving dependencies of `Podfile`
      CDN: trunk Relative path: CocoaPods-version.yml exists! Returning local because checking is only perfomed in repo update
      CDN: trunk Relative path: all_pods_versions_7_3_e.txt exists! Returning local because checking is only perfomed in repo
      update
      CDN: trunk Relative path: Specs/7/3/e/GVRKit/1.170.0/GVRKit.podspec.json exists! Returning local because checking is only
      perfomed in repo update
      CDN: trunk Relative path: Specs/7/3/e/GVRKit/1.170.0/GVRKit.podspec.json exists! Returning local because checking is only
      perfomed in repo update
      CDN: trunk Relative path: all_pods_versions_3_7_9.txt exists! Returning local because checking is only perfomed in repo
      update
      CDN: trunk Relative path: Specs/3/7/9/GVRSDK/1.170.0/GVRSDK.podspec.json exists! Returning local because checking is only
      perfomed in repo update
      CDN: trunk Relative path: Specs/3/7/9/GVRSDK/1.170.0/GVRSDK.podspec.json exists! Returning local because checking is only
      perfomed in repo update
      CDN: trunk Relative path: all_pods_versions_c_e_3.txt exists! Returning local because checking is only perfomed in repo
      update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.3.1/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.0/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.1/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.2/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.3/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.4/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.5/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.6/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.7/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.8/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.9/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.10/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.11/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.12/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.13/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.14/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.1.15/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.2.0/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.2.1/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.2.2/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.3.0/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/c/e/3/GTMSessionFetcher/1.3.1/GTMSessionFetcher.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: all_pods_versions_7_4_b.txt exists! Returning local because checking is only perfomed in repo
      update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.2.2/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.1.0/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.1.1/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.1.2/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.1.3/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.1.4/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.2.0/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.2.1/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.2.2/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update
      CDN: trunk Relative path: Specs/7/4/b/GoogleToolboxForMac/2.2.2/GoogleToolboxForMac.podspec.json exists! Returning local
      because checking is only perfomed in repo update

    Comparing resolved specification to the sandbox manifest
      A Flutter
      A GTMSessionFetcher
      A GVRKit
      A GVRSDK
      A GoogleToolboxForMac
      A video_player_360

    Downloading dependencies

以下文字数制限のため省略

Error running pod install

現在試した対策としては
https://stackoverflow.com/questions/54912188/flutter-plugin-ios-build-fail

こちらの解決策を実施しております。
似たようなところで詰まった方おられましたらご教示いただけますと幸いです。

追記
https://github.com/flutter/flutter/issues/20045
を試しましたがうまくいきませんでした。

Answer 1

そのパッケージのREADMEを確認したところ、下の方に以下のような記述がありました。
-i swiftというのはflutter createコマンドのデフォルト値なので、おそらくこれが原因ではないかと思います。

This plugin will not work if the flutter project was created with -i swift flag.

---

試しに以下のコマンドで、Objective-Cでプロジェクトを作ると正常に動くはずです。

flutter create -i objc <project_name>

Comments

[kazumasamatsumo]

ありがとうございます。
早速確認します！！