flutter doctor 后出现 HTTP host "ht

出现的错误

HTTP host "https://maven.google.com/" is not reachable. Reason: An error occurred while checking the HTTP host: Operation timed out
   ✗ HTTP host "https://cloud.google.com/" is not reachable. Reason: An error occurred while checking the HTTP host: Operation timed out

1、找到flutter sdk的文件目录，打开下面路径文件

flutter\packages\flutter_tools\lib\src\http_host_validator.dart

2、将文件中的链接进行替换

将其中的 https://maven.google.com/ 修改为 https://dl.google.com/dl/android/maven2/（解决第一个问题）
再将 kPubDevHttpHost 和 kgCloudHttpHost 两个常量 分别修改为 https://pub.flutter-io.cn/ 和 https://storage.flutter-io.cn/（解决第二个）

3、去到flutter\bin目录，删除cache目录下的flutter_tools.snapshot 文件

4、新开一个cmd，在cmd命令窗口重新运行flutter doctor,问题解决。
转制：https://blog.csdn.net/qq_40166103/article/details/125673747