* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

안녕하세요, shared_preferences 패키지 설치 중인데 툴바의 네모 버튼을 누르고 run without debugging 을 실행했더니 아래와 같은 에러 메세지가 뜹니다. 에뮬레이터도 끄고 재시작 해봤는데도 안되고 위에 툴바도 사라졌어요. 툴바는 어떻게 다시 보이게 할 수가 있나요...

작성한 코드 및 에러 메세지

main.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';


import 'memo_service.dart';


late SharedPreferences prefs;


void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  prefs = await SharedPreferences.getInstance();
  runApp(
    MultiProvider(
      providers: [
        ChangeNotifierProvider(create: (context) => MemoService()),
      ],
      child: const MyApp(),
    ),
  );
}


class MyApp extends StatelessWidget {
  const MyApp({super.key});


  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: HomePage(),
    );
  }
}


// 홈 페이지
class HomePage extends StatefulWidget {
  const HomePage({super.key});


  @override
  State<HomePage> createState() => _HomePageState();
}


class _HomePageState extends State<HomePage> {
  @override
  Widget build(BuildContext context) {
    return Consumer<MemoService>(
      builder: (context, memoService, child) {
        // memoService로 부터 memoList 가져오기
        List<Memo> memoList = memoService.memoList;


        return Scaffold(
          appBar: AppBar(
            title: Text("mymemo"),
          ),
          body: memoList.isEmpty
              ? Center(child: Text("메모를 작성해 주세요"))
              : ListView.builder(
                  itemCount: memoList.length, // memoList 개수 만큼 보여주기
                  itemBuilder: (context, index) {
                    Memo memo = memoList[index]; // index에 해당하는 memo 가져오기
                    return ListTile(
                      // 메모 고정 아이콘
                      leading: IconButton(
                        icon: Icon(CupertinoIcons.pin),
                        onPressed: () {
                          print('$memo : pin 클릭 됨');
                        },
                      ),
                      // 메모 내용 (최대 3줄까지만 보여주도록)
                      title: Text(
                        memo.content,
                        maxLines: 3,
                        overflow: TextOverflow.ellipsis,
                      ),
                      onTap: () {
                        // 아이템 클릭시
                        Navigator.push(
                          context,
                          MaterialPageRoute(
                            builder: (_) => DetailPage(
                              index: index,
                            ),
                          ),
                        );
                      },
                    );
                  },
                ),
          floatingActionButton: FloatingActionButton(
            child: Icon(Icons.add),
            onPressed: () {
              // + 버튼 클릭시 메모 생성 및 수정 페이지로 이동
              memoService.createMemo(content: '');
              Navigator.push(
                context,
                MaterialPageRoute(
                  builder: (_) => DetailPage(
                    index: memoService.memoList.length - 1,
                  ),
                ),
              );
            },
          ),
        );
      },
    );
  }
}


// 메모 생성 및 수정 페이지
class DetailPage extends StatelessWidget {
  DetailPage({super.key, required this.index});


  final int index;


  TextEditingController contentController = TextEditingController();


  @override
  Widget build(BuildContext context) {
    MemoService memoService = context.read<MemoService>();
    Memo memo = memoService.memoList[index];


    contentController.text = memo.content;


    return Scaffold(
      appBar: AppBar(
        actions: [
          IconButton(
            onPressed: () {
              // 삭제 버튼 클릭시
              showDeleteDialog(context, memoService);
            },
            icon: Icon(Icons.delete),
          )
        ],
      ),
      body: Padding(
        padding: const EdgeInsets.all(16),
        child: TextField(
          controller: contentController,
          decoration: InputDecoration(
            hintText: "메모를 입력하세요",
            border: InputBorder.none,
          ),
          autofocus: true,
          maxLines: null,
          expands: true,
          keyboardType: TextInputType.multiline,
          onChanged: (value) {
            // 텍스트필드 안의 값이 변할 때
            memoService.updateMemo(index: index, content: value);
          },
        ),
      ),
    );
  }


  void showDeleteDialog(BuildContext context, MemoService memoService) {
    showDialog(
      context: context,
      builder: (context) {
        return AlertDialog(
          title: Text("정말로 삭제하시겠습니까?"),
          actions: [
            // 취소 버튼
            TextButton(
              onPressed: () {
                Navigator.pop(context);
              },
              child: Text("취소"),
            ),
            // 확인 버튼
            TextButton(
              onPressed: () {
                memoService.deleteMemo(index: index);
                Navigator.pop(context); // 팝업 닫기
                Navigator.pop(context); // HomePage 로 가기
              },
              child: Text(
                "확인",
                style: TextStyle(color: Colors.pink),
              ),
            ),
          ],
        );
      },
    );
  }
}

Tip 2) Ctrl+A(맥의 경우 Command+A) 단축키로 코드를 한 번에 선택할 수 있어요!

debug console 에 뜨는 에러메세지

Launching lib/main.dart on iPhone SE (3rd generation) in debug mode...

lib/main.dart:1
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 `shared_preferences_ios` from `.symlinks/plugins/shared_preferences_ios/ios`

Error output from CocoaPods:
    ruby 2.6.8p205 (2021-07-07 revision 67951) [universal.arm64e-darwin21]

    -- Crash Report log information --------------------------------------------

       See Crash Report log file under the one of following:

         * ~/Library/Logs/DiagnosticReports
   * /Library/Logs/DiagnosticReports

       for more details.

    Don't forget to include the above Crash Report log file in bug reports.

    -- Control frame information -----------------------------------------------

    c:0049 p:---- s:0307 e:000306 CFUNC  :attach

    c:0048 p:0258 s:0301 e:000300 METHOD /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/library.rb:275

(중략.... )
     
 659 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/callback.rb

      660 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/io.rb

      661 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/autopointer.rb

      662 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/variadic.rb

      663 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/enum.rb

      664 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/version.rb

      665 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi/ffi.rb

      666 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi.rb      
666 /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.5/lib/ffi.rb

    [NOTE]

    You may have encountered a bug in the Ruby interpreter or extension libraries.

    Bug reports are welcome.

    For details: https://www.ruby-lang.org/bugreport.html

    [IMPORTANT]

    Don't forget to include the Crash Report log file under

    DiagnosticReports directory in bug reports.

Error: To set up CocoaPods for ARM macOS, run:
  sudo gem uninstall ffi && sudo gem install ffi -- --enable-libffi-alloc


Error running pod install

Error launching application on iPhone SE (3rd generation).