Error Parsing .dae (Collada) file... cannot find issue

Question

For the past couple of weeks I've been working on creating a custom Collada exporter for Revit Architecture, based on the example give here. In order to ensure that my output is correct, I'm comparing it to the output generated by the Revit to Lumion Bridge. I've gone though the files a half-dozen times or more and, aside from the way I name my elements, I cannot find any ways in which my export differs from theirs. For some reason, however, theirs imports just fine and mine doesn't. I'm building this for use with Unity, but I've also tried it with 3ds max and Blender, with the same results in each program.

I was hoping someone could point me in the direction of a Collada debug tool, or that someone may be able to look through the two files and see if they can find something I've missed.

Custom Exporter Output: Custom Exporter.dae

Revit to Lumion Bridge Output: Revit to Lumion Bridge.dae

Thanks in advance for any help, this is really giving me a headache >_>

Answer 1

One thing you can try is schema validation. If you run xmllint on your file, it might discover the problem. This only finds errors that violate the schema though, so it won't catch all problems.