hi, I am trying to deploy tripleo on predeployed nodes and i am getting error:

Sep 11 14:39:51 overcloud-novacompute-0 puppet-user[24821]: Undefined variable '::deploy_config_name';
Sep 11 14:39:51 overcloud-novacompute-0 puppet-user[24821]:    (file & line not available)
Sep 11 14:39:51 overcloud-novacompute-0 puppet-user[24821]: hiera(): Cannot load backend module_data: cannot load such file -- hiera/backend/module_data_backend
Sep 11 14:39:51 overcloud-novacompute-0 puppet-user[24821]: Undefined variable 'deploy_config_name';
Sep 11 14:39:51 overcloud-novacompute-0 puppet-user[24821]:    (file & line not available)

I have not given hiera parameter anywhere during either undercloud or overcloud installation. What might be the issue? From where can i start deugging please help