Vivek Vivek - 1 year ago 94
TypeScript Question

System.Import in Typescript not overriding the default path

I am a newbie to Typescript and Angular2.I have an

folder where I am creating ts files and I am trying to generate transpiled 'js' files to another folder built. 'Js' files are being generated successfully but when I try to
the files to html using
, scripts are not being refernced and throwing
. Both 'app' and 'built' folders are added to the root.
Here is my tsconfig.json :

"compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": false,
"outDir": "built"

And here I am importing the scripts to index.html :

System.import('built').catch(function(err){ console.error(err); });

Any help.

Edit : Here I have added the systemjs.config.js:

(function (global) {
paths: {
// paths serve as alias
'npm:': 'node_modules/'
// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',
// angular bundles
'@angular/core': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
// other libraries
'rxjs': 'npm:rxjs',
'angular2-in-memory-web-api': 'npm:angular2-in-memory-web-api',
// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.js',
defaultExtension: 'js'
rxjs: {
defaultExtension: 'js'
'angular2-in-memory-web-api': {
main: './index.js',
defaultExtension: 'js'

Answer Source

You need to change mapping of app to built as shown,

map: {
      // our app is within the app folder
      app: 'built',            //<-----changed 'app' to 'built'...
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