pull access denied repository does not exist or may require docker login

I am using Laravel 4.2 with docker. I setup it on local. It worked without any problem but when I am trying to setup online using same procedure then I am getting error:

pull access denied for <projectname>/php, repository does not exist or may require 'docker login'

is it something relevant to create repository here https://cloud.docker.com/ or need to docker login in command? After days of study I am still not able to figure out what could be the fix in this case and what are the right steps? I have the complete code. I can paste here if need to check certain parts.