1👍
Tthe syntax is different if you are using Chart.js v1 or v2.
You imported the v1.02 library using <script src="http://www.chartjs.org/assets/Chart.js"></script>
.
But you actually used the v2 syntax :
var myChart = new Chart(ctx, {
type: 'line',
data: data_live,
options: live_options
});
You can fix this by importing the right library (which is the v2) :
<!-- The following is the latest version of Chart.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.min.js"></script>
Source:stackexchange.com