I want to solve  this problem  too 

As I've fallen over my own question again:
The correct path is @MODULE_NAME/PATH_STARTING_AFER_SRC

eg: 

Filename:
/base_geoengine/static/src/js/views/geoengine/geoengine_record/geoengine_record.esm.js
Import:
import { GeoengineRecord } from "@base_geoengine/js/views/geoengine/geoengine_record/geoengine_record.esm";

Hi ,

Please verify that you have taken the component from the correct path

eg:

import { WallView } from "@module_name/actual_path/js";

//and also try adding this inside the components

export class ClassName extends Component{

}

ClassName.components = {

WallView

}

Regards

you have depens it ?

Try this

import { WallView } from "@bulletin_board_wall/static/src/bb_wall/wall_view";