failed to solve: failed to fetch oauth token: Post "https://auth.docker.io/

【报错内容】

ERROR: failed to solve: node:14-alpine: failed to resolve source metadata for docker.io/library/node:14-alpine: failed to do request: Head "https://hub-mirror.c.163.com/v2/library/node/manifests/14-alpine?ns=docker.io": EOF

【原因】镜像源配置错误或 Docker Hub 访问限制​​导致。 

 【解决】 在Docker Desktop中的Setting下的Docker Engine中更换配置信息，注意不能出现 #注释

"registry-mirrors": [
    "https://docker.1ms.run",
    "https://docker.m.daocloud.io",
    "https://ustc-edu-cn.mirror.aliyuncs.com"
  ]