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I'm trying to load a graph timeline made by using vis.js, but i'm getting the error:

Traceback:
Error: No container provided
    at o.n._create (http://localhost:8069/web/content/500-8270a43/web.assets_backend.js:3316:153882)
    at new o (http://localhost:8069/web/content/500-8270a43/web.assets_backend.js:3316:99553)
    at http://localhost:8069/web/content/500-8270a43/web.assets_backend.js:3319:846
My js code:
odoo.define('test_timeline.timeline', function (require){    
    "use strict";
var core = require('web.core');
    var rpc = require('web.rpc');    
    var AbstractAction = require('web.AbstractAction');
var QWeb = core.qweb;
var TimelineDashboard = AbstractAction.extend({
        start: function(){            
            var self = this;            
                rpc.query({                
                    model: 'project.project',                
                    method: 'get_project_record', //call python function                
                    args: [],}).then((res) => {
                         var container = document.getElementById('visualization');
                         //will use res on Dataset                
                         var items = new vis.DataSet([                  
                                {id: 1, content: 'item 1', start: '2013-04-20'},                  
                                {id: 2, content: 'item 2', start: '2013-04-14'},                  
                                {id: 3, content: 'item 3', start: '2013-04-18'},                  
                                {id: 4, content: 'item 4', start: '2013-04-16', end: '2013-05-19'},                  
                                {id: 5, content: 'item 5', start: '2013-04-25'},
                                {id: 6, content: 'item 6', start: '2013-06-27'},
                                {id: 7, content: 'item 7', start: '2013-05-27'},                  
                                {id: 8, content: 'item 8', start: '2013-05-27'},]);
                // Configuration for the Timeline                
                                var options = {                  
                                        height: '500px'};// Create a Timeline
                                var timeline = new vis.Timeline(container, items, options);                
                                self.$el.append(QWeb.render('TimelineDashboard', {}))            
}) } }) core.action_registry.add('timeline', TimelineDashboard);
return TimelineDashboard;});

My xml:
<?xml version="1.0" encoding="UTF-8"?>
<templates>
<t t-name="TimelineDashboard">
    <div id="visualization"></div>
</t></templates>
I'm loading the vis lib through here:
<template id="gantt_timeline_assets" name="gantt assets" inherit_id="web.assets_backend">        
<xpath expr="." position="inside">
<script type="text/javascript" src="/test_timeline/static/lib/vis-timeline-graph2d.min.js"/>
<script type="text/javascript" src="/test_timeline/static/src/js/load_records.js"/> <!-- My js code-->
<link rel="stylesheet" href="/test_timeline/static/lib/vis-timeline-graph2d.min.css"/>
</xpath>
</template>
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Author Best Answer

I solved by just rendering the qweb before the vis.js code, my mistake. Just for the record: ODOO community barely answers my questions and the documentaction of the JS framework doesn't help much and because of the monolithic architecture I'm almost given up of using odoo.


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