[Docker]-ERROR [internal] load metadata for docker.io

=> ERROR [internal] load metadata for docker.io

[+] Building 0.4s (3/3) FINISHED
 => [internal] load build definition from Dockerfile                                                 0.0s
 => => transferring dockerfile: 2.71kB                                                                     0.0s
 => [internal] load .dockerignore                                                                            0.0s
 => => transferring context: 2B                                                                               0.0s
 => ERROR [internal] load metadata for docker.io/library/ubuntu:22.04                   0.2s
------
 > [internal] load metadata for docker.io/library/ubuntu:22.04:
------
failed to solve: rpc error: code = Unknown desc = failed to solve with frontend dockerfile.v0: failed to create LLB definition: failed to authorize: rpc error: code = Unknown desc = failed to fetch anonymous token: Get "https://auth.docker.io/token?scope=repository%3Alibrary%2Fubuntu%3Apull&service=registry.docker.io": dial tcp: lookup auth.docker.io on xxx.xxx.x.x:xx: no such host

解決方案：

1. 修改設定檔 daemon.json，將"buildkit": true設定成"buildkit": false

   預設
   {
   "builder": {
   "gc": {
     "defaultKeepStorage": "20GB",
     "enabled": true
   }
   },
   "experimental": false,
   "features": {
   "buildkit": true
   }
   }
   修改後
   {
   "builder": {
   "gc": {
     "defaultKeepStorage": "20GB",
     "enabled": true
   }
   },
   "experimental": false,
   "features": {
   "buildkit": false
   }
   }

   2.如果有安裝Docker Desktop 如圖修改，完成後按下"Apply & Restart".