flutter 常见错误（持续更新）

• error1
  引用三方库后，执行flutter run报错
  Cloning into '/var/folders/gz/3_764jfj7lx3xwh5qw26r8_r0000gn/T/d20220519-15307-fuhzat'...
fatal: unable to access 'https://github.com/Weebly/OrderedSet.git/': Failed to connect to github.com port 443 after 75009 ms: Operation timed out
Error running pod install
Error launching application on iPhone SE (3rd generation).
  解决方案：https://juejin.cn/post/6844904193170341896

• err0r2
  Cloning into '/var/folders/gz/3_764jfj7lx3xwh5qw26r8_r0000gn/T/d20220519-16462-9coun7'...
fatal: unable to access 'https://github.com/Weebly/OrderedSet.git/': HTTP/2 stream 1 was not closed cleanly before end of the underlying stream
Error running pod install
Error launching application on iPhone SE (3rd generation).
  原因：是 git 默认使用的通信协议出现了问题，可以通过将默认通信协议修改为 http/1.1 来解决该问题。
  解决方案：git config --global http.version HTTP/1.1

• error3 导入flutter_boost后报错 import 'package:flutter_boost/flutter_boost.dart';

version older than the deployment target. Functionality may be limited. [9]
    ../../Documents/flutter/.pub-cache/git/flutter_boost-0e675b9922bee4401b5f5c90a7539a0366c0ec99/lib/src/messages.dart:4:1: Error: A library can't opt out of null safety by default,
    when using sound null safety.
    // @dart = 2.8
    ^^^^^^^^^^^^^^
    Error: Cannot run with sound null safety, because the following dependencies
    don't support null safety:

     - package:flutter_boost

原因：flutter_boost应用的版本有问题，调整到null-safety-release.1版本即可解决。

flutter_boost:
    git:
      url: 'https://github.com/alibaba/flutter_boost.git'
      ref: 'v3.0-null-safety-release.1'