Object reference not set to an instance of an object - Importing Global Module

Unexpected fatal error! Please report this to us.
Fuse 0.24.0 (build 7243)
Build started: FullCompile
fuse-components: E0000: Object reference not set to an instance of an object.
?: Error E0000: Object reference not set to an instance of an object.
C:\Users\509Dave16\Projects\Fuse\fuse-tic-tac-toe\app/MainView.ux(76): E8001: Data type not found: BorderedElement
C:\Users\509Dave16\Projects\Fuse\fuse-tic-tac-toe\app\MainView.ux(76,1): Error E8001: Data type not found: BorderedElement
C:\Users\509Dave16\Projects\Fuse\fuse-tic-tac-toe\app/MainView.ux(76): E8001: Could not resolve type 'BorderedElement'
C:\Users\509Dave16\Projects\Fuse\fuse-tic-tac-toe\app\MainView.ux(76,1): Error E8001: Could not resolve type 'BorderedElement'

Build completed in 2.94 seconds
    3 errors
Build ended
fuse: Failed to compile project

I received this error when attempting to import a JS module that was made globally available within an “included” fuse project. This JS Module is not related to ‘BorderedElement’ which is a ux:Class. I have a component called ObservableProxy. There is a .js file that defines the module. And a .ux file that makes it globally importable like so:


<JavaScript File="ObservableProxy.js" ux:Global="DSF/ObservableProxy" />


var Observable = require("FuseJS/Observable");

function SetupProxy(debug) {
  if(debug) {

function printObjectMembers(object) {
  for(var key in object) {
    console.log("Name of key:" + key);
    console.log("Type of key:" + typeof(object[key]));

module.exports = function() {

This component is in a sub project called fuse-components in the /vendor folder of the main project. And is included like so:


  "Packages": [
  "Includes": [
  "Projects": [

I’m not sure why this is happening. Here’s a link to the Github project: https://github.com/509dave16/fuse-tic-tac-toe

Let me know if you need more details!


Using ux:Global on <JavaScript> tags is a deprecated pattern. Instead, simply make sure your JS file is in the bundle of the included project, and then simply require() the file by a path relative to the project root.

That is, in your fuse-component.unoproj:

"Inculdes": [ 

And in your tic tac toe:

var op = require("ObservableProxy")