trying to edit Node Material from within my project.
What I did, did not work, then I tried this:

var nodeMaterial = new babylon.NodeMaterial("node", scene, { emitComments: true });
nodeMaterial.edit();
In both cases I get:

Cannot read properties of undefined (reading 'NodeEditor')
Script error.

at handleError (webpack://test_web/./node_modules/webpack-dev-server/client/overlay.js?:252:58)

at eval (webpack://test_web/./node_modules/webpack-dev-server/client/overlay.js?:271:7)
Am I missing some include?

Toggling the inspector works.
edit:

Same happens if I press pencil edit button in the inspector.
Thank you.