Fix XML3DLoaderPlugin error logging for unsupported 3DXML version

[Fillo22]

Describe the bug Changing the default 3dxml file with a new one cause in some cases an error that prevents the model from loading. Not all files create this behavior. I have attached both the working and the non working file

To Reproduce

1. Change the default file with another (attached in the issue).

Expected behavior The 3dxml model is loaded and visible

Screenshots

Desktop (please complete the following information):

• OS: Win10
• Browser Edge
• Version 90.0.818.62

Additional context This is the code that is facing the problem:

const viewer = new Viewer({
    canvasId: "myCanvas",
    transparent: true
});

var plugin = new XML3DLoaderPlugin(viewer, {
    id: "XML3DLoader",
    workerScriptsPath : "/javascripts/zipjs/"
});

var model = plugin.load({ // Model is an Entity
    id: "myModel",
    src: "/models/caster.3dxml",
    scale: [0.1, 0.1, 0.1],
    rotate: [90, 0, 0],
    translate: [100,0,0],
    edges: true,
    createMetaModel: true
});

And the files: models.zip

[xeolabs]

Hi, this was a bug with how XKT3DPlugin reports an unsupported 3DXML format verson. The plugin is supposed to build an error message that lists the supported versions, but while doing that referenced an undefined variable.

This is now fixed in master and @xeokit/xeokit-sdk 2.0.1 on npm.

So, for the motor_notWorking.3dxml file we now correctly see this in the JS console:

xeokit-sdk.es.js:1032 [xeokit plugin XML3DLoader]: Schema version not supported: 4.3 - supported versions are: 4.2

We just support 3DXML 4.2 at the moment.