Can't call react function from Unity

[meds]

I've followed the example provided on the main page, on the React end:

import React from 'react'; import { RegisterExternalListener } from 'react-unity-webgl';

export class App extends React.Component {
    constructor () {
        RegisterExternalListener ('OpenMenu', this.openMenu.bind (this));
    }
    openMenu (menuId) {
        console.log (`opening menu with id ${menuId$}`);
    }
}

and in Unity I have this:

using UnityEngine;

public class MenuController: MonoBehaviour {
    [DllImport("__Internal")]
    private static extern void OpenMenu (string menuId);
    public void OpenReactMenuById (string menuId) {
        OpenMenu (menuId);
    }
    void Start(){
   OpenReactMenuById("ok");    
    }
}

but when I run it I get an error saying the function couldn't be found:

missing function: OpenMenu printErr @ UnityLoader.js:1 _OpenMenu @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 xkl @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:10760 wkl @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:10759 SAj @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:4284 Fyl @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:32712 invoke_iiiii @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 off @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:28758 ahf @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:12699 m$ @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:12694 l$ @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:11614 fKa @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:20766 aKa @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:14401 xFb @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:14404 eVa @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:21179 ULb @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:21510 bIb @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:14576 RHb @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:14565 Szl @ blob:http://localhost:8080/a767f7e9-e581-4cbd-b3de-ab5a3586c7d8:32779 browserIterationFunc @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 runIter @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 requestAnimationFrame (async) requestAnimationFrame @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_scheduler_rAF @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2 Browser_mainLoop_runner @ blob:http://localhost:8080/13c645fc-9b9b-4f3f-8827-d5cf3c79c08b:2

Any ideas?

[jeffreylanters]

Closed as an exact duplicate of https://github.com/jeffreylanters/react-unity-webgl/issues/11