Flutter doctor 报 Got TLS error trying to find package xxx at https:// ...

原因：TLS设置标题
错误：
   Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
  
  Got TLS error trying to find package coverage at https://pub.flutter-io.cn. Failed to update packages.
  
  #0 throwToolExit (package:flutter_tools/src/base/common.dart:10:3)
  #1 _DefaultPub._runWithStdioInherited (package:flutter_tools/src/dart/pub.dart:503:7) <asynchronous suspension>
  #2 _DefaultPub.get (package:flutter_tools/src/dart/pub.dart:364:5) <asynchronous suspension>
  #3 PubDependencies.update (package:flutter_tools/src/flutter_cache.dart:126:5) <asynchronous suspension>
  #4 Cache.updateAll (package:flutter_tools/src/cache.dart:714:9) <asynchronous suspension>
  #5 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:1747:7) <asynchronous suspension>
  #6 FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1450:27) <asynchronous suspension>
  #7 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:19) <asynchronous suspension>
  #8 CommandRunner.runCommand (package:args/command_runner.dart:212:13) <asynchronous suspension>
  #9 FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:421:9) <asynchronous suspension>
  #10 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:19) <asynchronous suspension>
  #11 FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:364:5) <asynchronous suspension>
  #12 run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:131:9) <asynchronous suspension>
  #13 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:19) <asynchronous suspension>
  #14 main (package:flutter_tools/executable.dart:94:3) <asynchronous suspension>
  办理：

手动指定 SSL/TLS 版本

假如标题是由于 schannel 不兼容某些 TLS 设置，你可以尝试在 curl 或其他工具中手动指定使用 TLS 1.2 或 1.3

1. curl --tlsv1.2 https://pub.flutter-io.cn

复制代码

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