[SOLVED] loadGlbContainerFromAsset - undefined

I try to load asset from root folder, but method loadGlbContainerFromAsset of utils is undefined.
I was try make copy of model and script from this example Loading glTF GLBs | Learn PlayCanvas but have the same error in my project
that is all the utils have

The reason of error is not exist file glb-utils.js from example in my project.
For me it was not so clearly that is important