인프런 커뮤니티 질문&답변

import 'package:flutter/material.dart';

class TabPage extends StatefulWidget {
  const TabPage({super.key});

  @override
  State<TabPage> createState() => _TabPageState();
}

class _TabPageState extends State<TabPage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      bottomNavigationBar: BottomNavigationBar(
        items: const [
          BottomNavigationBarItem(icon: Icon(Icons.home), label: 'Home'),
        ],
      ),
    );
  }
}

이 부분에서 코드를 작성한 후 실행하면

======== Exception caught by widgets library =======================================================

The following assertion was thrown building TabPage(dirty, state: _TabPageState#63dc1):

'package:flutter/src/material/bottom_navigation_bar.dart': Failed assertion: line 246 pos 15: 'items.length >= 2': is not true.

The relevant error-causing widget was:

TabPage TabPage:file:///C:/Users/user/StudioProjects/instagram/lib/main.dart:21:19

When the exception was thrown, this was the stack:

#2 new BottomNavigationBar (package:flutter/src/material/bottom_navigation_bar.dart:246:15)

#3 TabPageState.build (package:instagram/tab/tabpage.dart:14:28)

#4 StatefulElement.build (package:flutter/src/widgets/framework.dart:5409:27)

#5 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5297:15)

#6 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5462:11)

#7 Element.rebuild (package:flutter/src/widgets/framework.dart:5016:7)

#8 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:5279:5)

#9 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:5453:11)

#10 ComponentElement.mount (package:flutter/src/widgets/framework.dart:5273:5)

... Normal element mounting (220 frames)

#230 Element.inflateWidget (package:flutter/src/widgets/framework.dart:4182:16)

#231 MultiChildRenderObjectElement.inflateWidget (package:flutter/src/widgets/framework.dart:6569:36)

#232 MultiChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:6581:32)

... Normal element mounting (467 frames)

#699 Element.inflateWidget (package:flutter/src/widgets/framework.dart:4182:16)

#700 Element.updateChild (package:flutter/src/widgets/framework.dart:3707:18)

#701 RenderObjectToWidgetElement._rebuild (package:flutter/src/widgets/binding.dart:1253:16)

#702 RenderObjectToWidgetElement.mount (package:flutter/src/widgets/binding.dart:1222:5)

#703 RenderObjectToWidgetAdapter.attachToRenderTree.<anonymous closure> (package:flutter/src/widgets/binding.dart:1169:18)

#704 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2719:19)

#705 RenderObjectToWidgetAdapter.attachToRenderTree (package:flutter/src/widgets/binding.dart:1168:13)

#706 WidgetsBinding.attachRootWidget (package:flutter/src/widgets/binding.dart:1001:7)

#707 WidgetsBinding.scheduleAttachRootWidget.<anonymous closure> (package:flutter/src/widgets/binding.dart:981:7)

#711 RawReceivePort.handleMessage (dart:isolate-patch/isolate_patch.dart:189:12)

(elided 5 frames from class AssertionError, class Timer, and dart:async-patch)

====================================================================================================

D/ProfileInstaller(12980): Installing profile for com.example.instagram

이런 에러가 계속 발생하는데 어떤 식으로 해결해야 할까요??