Load scene, get "TypeError: a is undefined"

[giertych97]

Hi, I'm new in babylon.js (and the others 3d frameworks). A moment ago I exported scene from *.obj to *.babylon. Now I'm trying to load it, but im getting error:

 

TypeError: a is undefined [babylon.min.js:2]

 

My simple code:

    if (BABYLON.Engine.isSupported()) {        var canvas = document.getElementById("renderCanvas");        var engine = new BABYLON.Engine(canvas, true);        BABYLON.SceneLoader.Load("", "/~patrol/objects/maps/city/scene.babylon", engine, function (newScene) {            // Wait for textures and shaders to be ready            newScene.executeWhenReady(function () {                // Attach camera to canvas inputs                newScene.activeCamera.attachControl(canvas);                // Once the scene is loaded, just register a render loop to render it                engine.runRenderLoop(function() {                    newScene.render();                });            });        }, function (progress) {            // To do: give progress feedback to user        });    }

[Carlos R]

Hi @giertych97, can you share us your .babylon scene? or in order to get a quick look we need a repro case in the playground, can you share it?

[Dad72]

Your error is on this line

 

Bad = > BABYLON.SceneLoader.Load("", "/~patrol/objects/maps/city/scene.babylon", engine, function (newScene) {

 

The path should be in the first argument :

 

Good => BABYLON.SceneLoader.Load("/~patrol/objects/maps/city/", "scene.babylon", engine, function (newScene) {

[RaananW]

This usually happens to me when the babylon scene is missing needed information. If dad's advice didn't help, paste your babylon scene file. My guess is that something is wrong there.

[JCPalmer]

Couple of thoughts:

 

If you are going to post about an error in Babylon.js, do yourself a favor & use the debug version.  Line 2 of babylon.min.js has probably hundreds of statements.

 

SceneLoader, is not a statement executed inside a tight loop, so if having a '/' is not valid inside the filename arg, then performing argument validation should be done.  You can look at such things for a long time and not notice the issue.