Flutter 异常解决方案

前言

这篇文章主要涉及 Flutter 项目运行时的各类问题

问题一

运行时报 Android v1 embedding 问题

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The detected reason was:
  /Users/jiangxr/Gitee/Flutter_shop/android/app/src/main/AndroidManifest.xml uses `android:name="io.flutter.app.FlutterApplication"`
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Build failed due to use of deprecated Android v1 embedding.

解决方案

• 1、找到 manifest 文件中的 application 配置

  <application
      android:name="io.flutter.app.FlutterApplication"
      android:label="zdk_app"
      android:icon="@mipmap/ic_launcher"/>

• 2、删除掉 android:name 属性

  android:name="io.flutter.app.FlutterApplication"

• 3、将如下 <meta-data> 插入到 <activity> 标签下

  <meta-data android:name="flutterEmbedding" android:value="2"/>

问题二

Error: Cannot run with sound null safety, because the following dependencies
don't support null safety:

 - package:cloud_firestore_web
 - package:firebase_core_web
 - package:shared_preferences
 - package:url_launcher_web
 - package:firebase_auth
 - package:http
 - package:provider
...

For solutions, see https://dart.dev/go/unsound-null-safety
Failed to compile application.

解决方案

flutter run --no-sound-null-safety

或者

Run → Edit Configurations → Add Additional Run args → --no-sound-null-safety