Can I set default_target to graphical.target?

[stonefly128]

I worked on rpm-ostree 2018.5，and added gnome packages in centos-atomic-host.json, also modified default_target: "graphical.target". After I composeed tree, and rpm-ostree rebased to the new repo, the atomic host still run in multi-user.target. But, the atomic host will work run in graphical.target after "systemctl set-default graphical.target".
I want to know what's wrong with my procedure, thank you.

[cgwalters]

It's default_target, not default_targets. Does that help?

[stonefly128]

@cgwalters Thanks for your reply.
Sorry, I made a mistake when describing the question, actually, the json is:

                 ...
                 "attr",
                 "container-storage-setup",
                 "firewalld"],
    "units": ["docker.service", "tuned.service", "ostree-remount.service", "docker-storage-setup.service"],
    "default_target": "graphical.target"
}

So, it's not help me.