各位好 我刚接触docker，今天和昨天研究了俩天 自己在windows下弄了Boot2Docker 按照官网的Examples试了 但是没building 成功，具体如下：

docker@boot2docker:~/src$ sudo docker build -t song/centos-node-hello

Usage: docker build [OPTIONS] PATH | URL | -
Build a new image from the source code at PATH
  --force-rm=false     Always remove intermediate containers, even after unsucce
ssful builds
  --no-cache=false     Do not use cache when building the image
  -q, --quiet=false    Suppress the verbose output generated by the containers
  --rm=true            Remove intermediate containers after a successful build
  -t, --tag=""         Repository name (and optionally a tag) to be applied to t

he resulting image in case of success

貌似是主机解析有问题，不知道该从哪解决，求各位大神指点下