Chartjs Pie - Failed to create chart: can't acquire context from the given item

Hi

I was trying to use charts pie chart, I keep getting the error “Failed to create chart: can’t acquire context from the given item” in my browser console. Other charts works expect for Pie chart

Pls advise on what to do to fix this. see my code below

function getRandom(min = 1, max = 100) {
return Math.floor(Math.random() * (max - min) + min);
}
function generateRandomData(min = 1, max = 100, count = 10) {
var arr = [];
for (var i = 0; i < count; i++) {
arr.push(getRandom(min, max));
}
return arr;
}

var ctx = document.getElementById('skt_chartjs_3');

// Define colors
var primaryColor = KTUtil.getCssVariableValue('--kt-primary');
var dangerColor = KTUtil.getCssVariableValue('--kt-danger');
var successColor = KTUtil.getCssVariableValue('--kt-success');
var warningColor = KTUtil.getCssVariableValue('--kt-warning');
var infoColor = KTUtil.getCssVariableValue('--kt-info');

// Define fonts
var fontFamily = KTUtil.getCssVariableValue('--bs-font-sans-serif');

// Chart labels
const labels = ['January', 'February', 'March', 'April', 'May'];

// Chart data
const data = {
labels: labels,
datasets: [
{
label: 'Dataset 1',
data: generateRandomData(1, 100, 5),
backgroundColor: [primaryColor, dangerColor, successColor, warningColor, infoColor]
},
]
};


// Chart config
const config = {
type: 'pie',
data: data,
options: {
plugins: {
title: {
display: false,
}
},
responsive: true,
},
defaults:{
global: {
defaultFont: fontFamily
}
}
};

// Init ChartJS -- for more info, please visit: https://www.chartjs.org/docs/latest/
var myChart = new Chart(ctx, config);

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Replies (5)

Hi,

Could you please try to add this? getContext('2d');

var ctx = document.getElementById('skt_chartjs_3').getContext('2d');
//.........
var myChart = new Chart(ctx, config);

Thanks

I have, I however I got Uncaught TypeError: document.getElementById(...).getContext is not a function logged in the browser console and the pie chart did not render

Does the canvas' element exist?

<canvas width="400" height="400"></canvas>

Thanks

This it works now

Glad it works. Let us know if you need any more help.

Thanks

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Text formatting options
Submit
Here's a how to add some HTML formatting to your comment:
  • <pre></pre> for JS codes block
  • <pre lang="html"></pre> for HTML code block
  • <pre lang="scss"></pre> for SCSS code block
  • <pre lang="php"></pre> for PHP code block
  • <code></code> for single line of code
  • <strong></strong> to make things bold
  • <em></em> to emphasize
  • <ul><li></li></ul>  to make list
  • <ol><li></li></ol>  to make ordered list
  • <h3></h3> to make headings
  • <a></a> for links
  • <img> to paste in an image
  • <blockquote></blockquote> to quote somebody
  • happy  :)
  • shocked  :|
  • sad  :(
Text formatting options
Submit
Here's a how to add some HTML formatting to your comment:
  • <pre></pre> for JS codes block
  • <pre lang="html"></pre> for HTML code block
  • <pre lang="scss"></pre> for SCSS code block
  • <pre lang="php"></pre> for PHP code block
  • <code></code> for single line of code
  • <strong></strong> to make things bold
  • <em></em> to emphasize
  • <ul><li></li></ul>  to make list
  • <ol><li></li></ol>  to make ordered list
  • <h3></h3> to make headings
  • <a></a> for links
  • <img> to paste in an image
  • <blockquote></blockquote> to quote somebody
  • happy  :)
  • shocked  :|
  • sad  :(