Uncaught runtime error: Undefined is not an object (evaluating 'this.tracker dummyRun')

[FernandoSa93]

I'm using mind ar aframe with react and sometimes when the camera starts this error occurs, including with the example of multi targets.

Here is my code:
import React, { useEffect, useRef } from 'react';
import 'aframe';
import 'aframe-extras';
import 'mind-ar/dist/mindar-image-aframe.prod.js';

const ARComponent = () => {
const sceneRef = useRef(null);

useEffect(() => {
const sceneEl = sceneRef.current;
const arSystem = sceneEl.systems["mindar-image-system"];
sceneEl.addEventListener('renderstart', () => {
arSystem.start(); // start AR
});
return () => {
arSystem.stop();
}
}, []);

return (

<a-scene ref={sceneRef} mindar-image="imageTargetSrc: https://cdn.jsdelivr.net/gh/FernandoSa93/courage_quest_ar@main/src/mind/teste/assets/band.mind; filterMinCF:0.1; filterBeta: 10; maxTrack: 1" color-space="sRGB" vr-mode-ui="enabled: false" device-orientation-permission-ui="enabled: false">
  <a-assets>
    <a-asset-item id="barata1" src="https://cdn.jsdelivr.net/gh/FernandoSa93/courage_quest_ar@main/src/mind/barata/assets/barata1/scene.gltf"></a-asset-item>
  </a-assets>

  <a-camera position="0 0 0" look-controls="enabled: false"></a-camera>

  <a-entity mindar-image-target="targetIndex: 0">
    <a-gltf-model rotation="270 180 0" position="0 -0.25 0" scale="0.8 0.8 0.7" src="#barata1" animation-mixer />
  </a-entity>
</a-scene>

);
}

export default ARComponent;

Could you tell me what could be causing this problem?

[ThatGuyTre]

I'm having the same issue. I am not sure why it's happening, but I think it's causing issues when reloading the page due to the "arReady" emit not working