validate_layout_property.js:14Uncaught TypeError: Cannot read property 'visibility' of undefined

[binchen123]

According to the instructions which is contained in CONTRIBUTING.md file of mapbox-gl-js/building_redux_renderbuffer_dds branch, I finished the preparation of development enviroment.After starting the web server with commandline(mapbox_accesstoken={X} npm run start-debug),I try to browse index.html page with firefox.Unfortunately,the error occured(see the title).Could you tell me why?What shoud I do?

[binchen123]

mapbox_streets_v8.json:
{
"version": 8,
"name": "Mapbox Streets",
"metadata": {
"mapbox:autocomposite": true
},
"sources": {
"composite": {
"url": "mapbox://nicki.bmpkqj9z",
"type": "vector"
}
},
"sprite": "mapbox://sprites/mapbox/streets-v8",
"glyphs": "mapbox://fonts/mapbox/{fontstack}/{range}.pbf",
"layers": [
{
"id": "background",
"type": "background",
"layout": {
"visibility": "visible"
},
"paint": {
"background-color": "#999"
},
"interactive": true
},

    {
        "interactive": true,
        "layout": {
            "visibility": "visible",
            "line-cap": "round",
            "line-join": "round"
        },
        "type": "line",
        "source": "composite",
        "id": "road-motorway-case",
        "paint": {
            "line-width": {
                "base": 1.5,
                "stops": [
                    [
                        5,
                        0.75
                    ],
                    [
                        18,
                        20
                    ]
                ]
            },
            "line-color": {
                "base": 1,
                "stops": [
                    [
                        5.9,
                        "#fff"
                    ],
                    [
                        6,
                        "#fff"
                    ]
                ]
            },
            "line-opacity": {
                "base": 1.2,
                "stops": [
                    [
                        5,
                        0
                    ],
                    [
                        5.5,
                        1
                    ]
                ]
            }
        },
        "source-layer": "road"
    },
    {
        "interactive": true,
        "layout": {
            "visibility": "none"
        },
        "type": "fill",
        "source": "composite",
        "id": "building-fill",
        "paint": {
            "fill-color": "#f00",
            "fill-opacity": 1,
            "fill-outline-color": "#0f0"
        },
        "source-layer": "building"
    },
    {
      "layout": {
        "visibility": "visible"
      },
      "type": "extrusion",
      "source": "composite",
      "id": "buildingtada",
      "filter": ["in", "extrude", "true"],
      "paint": {
        "extrusion-color": "#fff",
        "extrusion-antialias": true,
        "extrusion-outline-color": "#f00",
        "extrusion-opacity": 1,
        "extrusion-shadow-color": "#00f",
        "extrusion-lighting-anchor": "viewport"
      },
      "source-layer": "building",
      "interactive": true
    },
    {
        "id": "road-label",
        "type": "symbol",
        "source": "composite",
        "source-layer": "road_label",
        "interactive": true,
        "filter": [
            "all",
            [
                "in",
                "$type",
                "LineString",
                "Point",
                "Polygon"
            ],
            [
                "in",
                "class",
                "motorway",
                "pedestrian",
                "primary",
                "secondary",
                "street",
                "street_limited",
                "tertiary"
            ]
        ],
        "layout": {
            "text-field": "{name_en}",
            "symbol-placement": "line",
            "text-size": 16,
            "text-font": [
                "DIN Offc Pro Cond Medium",
                "Arial Unicode MS Regular"
            ],
            "text-transform": "uppercase"
        },
        "paint": {}
    },
    {
        "id": "poi-label",
        "type": "symbol",
        "source": "composite",
        "source-layer": "poi_label",
        "interactive": true,
        "filter": [
            "<=",
            "scalerank",
            3
        ],
        "layout": {
            "visibility": "visible",
            "text-field": "{name_en}",
            "text-font": [
                "DIN Offc Pro Regular",
                "Arial Unicode MS Regular"
            ],
            "text-size": 12
        },
        "paint": {
            "text-halo-width": 1,
            "text-halo-color": "#fff"
        }
    }
]

}

[jfirebaugh]

mapbox-gl-js/building_redux_renderbuffer_dds branch

Sorry, we can't provide support for branches other than master. They may be in progress, out of date, or otherwise not working for a variety of reasons.

[binchen123]

Firstly,thanks to jfirebaugh.As you said the community can't provie help for branch other than master,but the discussion about 3d extrusion(building) rendering on mapbox-gl-js is up to date(thread:mapbox/mapbox-gl-style-spec#456 you tell me which branch could do the 3d extrusion rendering(buildings) or what I should do?

[jfirebaugh]

Most likely, you should simply wait until we've released the feature in an officially supported version.

You're welcome to try out in progress work, but we can't provide technical support for it -- doing so would take away from the limited time we have, which we want to use to work on the feature itself.

[binchen123]

Thanks again.I am now debugging the issue.

[binchen123]

John Firebaugh:I solved the issue,thank you.

[image: 内嵌图片 1]

2016-09-02 8:57 GMT+08:00 John Firebaugh notifications@github.com:

Most likely, you should simply wait until we've released the feature in an
officially supported version.

You're welcome to try out in progress work, but we can't provide technical
support for it -- doing so would take away from the limited time we have,
which we want to use to work on the feature itself.

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