How do I concattinate my angular2 app javascript f

For my angular2 typescript app I concat all my js files into one app.min.js file, then System.import this file to my index.html page.

I then get a Multiple anonymous System.register calls in the same module file error in my console log.

I put all my Javascript files (not libraries) into app.min.js and then on my index.html page I then import the file using system.import to import that js file.

When I concat all the Javascript files into one file I do them in a certain order.

Maybe I'm missing some references or settings in my configs?

This is my index.html page:

<!DOCTYPE html>
<html lang="en" prefix="og: http://ogp.me/ns#" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <base href="/"></base>

    <meta charset="UTF-8">
    <meta name="fragment" content="!"/>
    <meta content="IE=edge, chrome=1" http-equiv="X-UA-Compatible"/>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0, minimum-scale=0.5, user-scalable=yes"/>


    <!-- inject:css -->    
       <link rel="stylesheet" href="/src/css/styles.af010955.css">    
    <!-- endinject -->

    <!-- Js libs -->    
    <script type="text/javascript" src="https://cdn.jsdelivr.net/lodash/4.11.2/lodash.min.js"></script>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>        
    <script type="text/javascript" src="/bootstrap.js"></script>    

    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.34.2/es6-shim.min.js"></script>    
    <script type="text/javascript" src="/safariPolyFix.js"></script>    
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.18.4/system.src.js"></script>   

    <script>
        System.config({
            transpiler: 'typescript',
            defaultJSExtensions: true,  
            typescriptOptions: {
                emitDecoratorMetadata: true,
            },          
            packages: {
                'angular2-google-maps': {
                  defaultExtension: 'js'
                }
            }
        });       
    </script>

    <script type="text/javascript" src="/angular2_google_maps.js"></script>

    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/angular2-polyfills.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/tools/typescript.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/Rx.js"></script>

    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/angular2.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/router.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/http.js"></script>  

    <script type="text/javascript" src="/firebase/firebaseNew.js"></script>

  </head>

  <body id="container">

    <app></app>

    <script type="text/javascript">  
      System.import('/app/app.min.js');
    </script>

  </body>
</html>

This is my gulp file:

var gulp = require('gulp');
var concat = require('gulp-concat');

gulp.task('app', function() {
    return gulp.src(['src/app/app.component.js', 'src/app/*.js', 'src/app/filters/*.js', 'src/app/models/**/*.js', 'src/app/components/**/*.js', 'src/app/services/**/*.js'])
        .pipe(concat('app.min.js'))
        .pipe(gulp.dest('src/app'));
});

gulp.task('default', ['app']);

This is my tsconfig.json

{
  "compilerOptions": {
    "target": "ES5",
    "module": "system",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false
  },
  "exclude": [
    "node_modules"
  ]
}

This is my screen grab of the error:

This is the source files in the browser console:

In fact you can't concat js files by your own that are generated by the typescript compiler.

If you want to have all of them in a single file, you need to leverage the outFile property of the compiler in the tsconfig.json file:

{
  "compilerOptions": {
    "target": "ES5",
    "module": "system",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false,
    "outFile": "app.js" <-------
  },
  "exclude": [
    "node_modules"
  ]
}