Flutter:Failed host lookup: ‘www.xxx.com‘ (OS Error: No address associated with hostname, errno = 7)

标题解决方法：

设置模拟器的 DNS 为 8.8.8.8 或 8.8.4.4

1. 找到 Android SDK 目录，如我的
   “C:\Users\Administrator\AppData\Local\Android\Sdk\emulator”
2. 在 emulator 打开 powershell 执行：

emulator -avd Pixel_3a_API_34_extension_level_7_x86_64 -dns-server 8.8.8.8

“Pixel_3a_API_34_extension_level_7_x86_64” 是你模拟器设备名称

windows 10 如果报以下错误：

在 emulator 前面添加 “.\”

.\emulator -avd Pixel_3a_API_34_extension_level_7_x86_64 -dns-server 8.8.8.8

执行以上命令后，如果报以下错：

INFO    | Android emulator version 32.1.15.0 (build_id 10696886) (CL:N/A)
INFO    | Found systemPath C:\Users\Administrator\AppData\Local\Android\Sdk\system-images\android-34\google_apis\x86_64\
INFO    | Storing crashdata in: C:\Users\Administrator\AppData\Local\Temp\\AndroidEmulator\emu-crash.db, detection is enabled
INFO    | Duplicate loglines will be removed, if you wish to see each indiviudal line launch with the -log-nofilter flag.
WARNING | Please update the emulator to one that supports the feature(s): SupportPixelFold
ERROR   | Running multiple emulators with the same AVD
ERROR   | is an experimental feature.
ERROR   | Please use -read-only flag to enable this feature.

去 Android Studio 中去更新 SDK 后，重新执行即可。

原谅参考： https://blog.youkuaiyun.com/weixin_44388523/article/details/114319471