Cant Find app Steam On Wii u Moonlight

[MegaRaptor123]

Not sure if this is an issue but it says cant find app steam I went to apps.windows.json and changed everything to this { "env":{ "PATH":"$(PATH);C:\Program Files (x86)\Steam" }, "apps":[ { "name":"Steam",

    "output":"steam.txt",
    "prep-cmd":[
        {"do":"steam \"steam://open/bigpicture\""}
    ]
}
]

}

Is there something else I must change?