In salesforce Iam using Chartjs

[rrbrishabh]

I am not able to use chartjs file previouly is working but now its showing still same error:
TypeError: window.Chart is not a constructor
please help me with this

[Syaptiyan]

This error usually happens because Chart.js is not properly loaded or the version changed. Here are the solutions:

Solution 1: Check if Chart.js is loaded

Check if Chart is available in the browser console.

Solution 2: Use the correct import syntax

In Salesforce Lightning Web Components, use loadScript to load Chart.js from static resources.

Solution 3: Check for multiple Chart.js instances

If you see "Chart is already defined", destroy existing charts first.

Solution 4: Use Chart.js from CDN

If the static resource approach does not work, try loading from CDN.

Solution 5: Check Salesforce console errors

Open browser console and check for network errors, syntax errors, or CSP violations.