Errors with Chart.js

[SoftCircuits]

Installed product versions

• Visual Studio: 2022 Community
• This extension: 2.9.3

Description

I'm getting the following errors minifying and bundling Chart.js.

Severity    Code    Description Project File    Line    Suppression State
Error       (Bundler & Minifier) Strict-mode does not allow duplicate property names: =     D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  1841    
Error       (Bundler & Minifier) Strict-mode does not allow duplicate property names: =     D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  1841    
Error       (Bundler & Minifier) Implicit property name must be identifier: stackWeight =       D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  3016    
Error       (Bundler & Minifier) Strict-mode does not allow duplicate property names: =     D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  4253    
Error       (Bundler & Minifier) Strict-mode does not allow duplicate property names: =     D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  7703    
Error       (Bundler & Minifier) Strict-mode does not allow duplicate property names: =     D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  9866    
Error       (Bundler & Minifier) Strict-mode does not allow duplicate property names: =     D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  10164   
Error       (Bundler & Minifier) Strict-mode does not allow duplicate property names: =     D:\Users\jwood\source\repos\Railtrax\Pegasus\wwwroot\bundles\charts.min.js  10330   

Issue 1

What exactly is the error? charts.min.js is the output filename so I'm not sure why the output file is the error. Could it be that it's already minified and there's an error during bundling? Why is it checking CSS syntax during bundling? Wouldn't that be checked during CSS minification?

NOTE: Because of these errors, no charts.min.js file is created. So it appears that I am unable to view the line that causes the error.

Issue 2

Does chart.js have invalid CSS? It's a very advanced and modern library. Seems to work fine until I pass it to Bundler & Minifier.

Here's my bundleconfig.json file.

[
  // Site.css
  {
    "outputFileName": "wwwroot/bundles/site.min.css",
    "inputFiles": [
      "wwwroot/css/site.css"
    ]
  },
  {
    "outputFileName": "wwwroot/bundles/site.min.js",
    "inputFiles": [
      "wwwroot/js/site.js"
    ]
  },

  // Layout
  {
    "outputFileName": "wwwroot/bundles/layout.min.css",
    "inputFiles": [
      "wwwroot/css/layout/app.css",
      "wwwroot/css/layout/style.css"
    ]
  }, 
  {
    "outputFileName": "wwwroot/bundles/layout.min.js",
    "inputFiles": [
      "wwwroot/js/layout/metismenu.js",
      "wwwroot//jslayout/app.js"
    ]
  },

  // Bootstrap-select
  {
    "outputFileName": "wwwroot/bundles/bootstrap-select.min.css",
    "inputFiles": [
      "wwwroot/css/bootstrap-select.css"
    ]
  },
  {
    "outputFileName": "wwwroot/bundles/bootstrap-select.min.js",
    "inputFiles": [
      "wwwroot/js/bootstrap-select.js"
    ]
  },

  // Charts
  {
    // Bundle js/charts.min.js + chartjs/chart.min.js
    "outputFileName": "wwwroot/bundles/charts.min.js",
    "inputFiles": [
      "wwwroot/lib/chartjs/chart.js",
      "wwwroot/js/charts.js"
    ]
  }
]