Tag latest not found in repository docker.io/wotcity/wotcity-io

Ref: https://github.com/docker/docker-registry/issues/637
ASUS X450J (Windows 10 Edux64)
Docker
1. Follow Ref:https://wotcity.com/blog/2015/09/07/installation-guide/
2. docker pull wotcity/wotcity-io
Error  : Tag latest not found in repository docker.io/wotcity/wotcity-io
3. Solve by
docker pull -a wotcity/wotcity-io