TypeError: Cannot read property 'length' of undefined

[apptaro]

Converting some GLTF file to GLB results in an error. The GLTF file is the output of COLLADA2GLTF. The original DAE file is the output of Maya.

See below:

D:\projectDir> COLLADA2GLTF-bin.exe -i "D:\projectDir\coco-low-sofa-ottoman.dae" -o "D:\projectDir\coco-low-sofa-ottoman.gltf" -v 2.0
Converting D:\projectDir\coco-low-sofa-ottoman.dae -> D:\projectDir\coco-low-sofa-ottoman.gltf
Time: 87 ms

D:\projectDir> gltf-import-export D:\projectDir\coco-low-sofa-ottoman.gltf

D:\projectDir\node_modules\gltf-import-export\dist\exportProvider.js:130
    for (; bufferIndex < gltf.buffers.length; bufferIndex++) {
                                      ^

TypeError: Cannot read property 'length' of undefined
    at ConvertToGLB (D:\projectDir\node_modules\gltf-import-export\dist\exportProvider.js:130:39)
    at Object.ConvertGltfToGLB (D:\projectDir\node_modules\gltf-import-export\dist\exportProvider.js:109:5)
    at Object.<anonymous> (D:\projectDir\node_modules\gltf-import-export\dist\tool.js:31:13)
    at Module._compile (module.js:643:30)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)
    at tryModuleLoad (module.js:499:12)
    at Function.Module._load (module.js:491:3)
    at Function.Module.runMain (module.js:684:10)
    at startup (bootstrap_node.js:187:16)

D:\projectDir>

Versions:

• gltf-import-export: 1.0.11
• COLLADA2GLTF: 2.1.2 Windows x64

[emackey]

@apptaro Can you share the .gltf file and/or the .dae file? GitHub allows .zip uploads of < 10 MB just by drag-and-drop on the issue here. Thanks!

[najadojo]

Even so it looks as though your .gltf didn't export correctly as its missing the buffers object.

[apptaro]

@emackey here's the data. data.zip

[emackey]

Thanks for the sample, @apptaro. I notice that the converted glTF file is basically empty. Are you using a recent version of the COLLADA2GLTF converter? This is the complete contents of that glTF file:

{
    "asset": {
        "generator": "COLLADA2GLTF",
        "version": "2.0"
    },
    "scenes": [
        {
            "nodes": []
        }
    ],
    "scene": 0
}

It's the right outer structure, but there's no data here, no buffers or meshes etc. Try exporting with a newer version of the COLLADA2GLTF exporter, and if that doesn't fix the glTF file being empty, file a new issue with the COLLADA2GLTF project. Thanks!

[apptaro]

@emackey Thank you very much. I will file a new issue with them. Closing.