Nothing is recording

[Amandine]

I've tried to use the heatmap tool to draw heatmap for gaze data from an eye tracker. I've got the following script to create my heatmap, I've used to convert what I want in float because double do not work.

using UnityEngine;
using System.Collections;
using UnityAnalyticsHeatmap;
using Newtonsoft.Json;
using TETCSharpClient;
using TETCSharpClient.Data;

public class essai : MonoBehaviour {

    void debut(GazeData gazeData)
    {
        float x = (float)(gazeData.SmoothedCoordinates.X);
        float y = (float)(gazeData.SmoothedCoordinates.Y);
        UnityAnalyticsHeatmap.HeatmapEvent.Send("GazeData", new Vector2 (x,y));
    }
}

I've tried my application but when I want to draw the heatmap it doesn't work, I've got the following error : NullReferenceException: Object reference not set to an instance of an object HeatmapMeshRenderer..RenderHeatmap() (at Assets/Plugins/Heatmaps/Renderer/HeatmapMeshRendere.cs : 171)

That's the following lines of the script :

for (int a = 0; a < m_Data.Length; a++) I guess that the problem is that nothing is recording, more i've got the following warning message :The aggregation process yielded no results. UnityEngine.Debut:Logwarning(Object) which confirm the fact that nothing is record to draw the heatmap..

I was wondering why I've got this issue maybe it came from my conversion in float but I'm not sure. I really need it to works because I have to draw heatmap from my game and this way seems to be the better one.

Thanks so much for helping