Encountering a script error when upgrading to rc4 in Angular 2

After attempting to update my Angular 2 version to 2.0.0.rc.4, I encountered a script error following npm install and npm start.

Please see my package.json file below

"dependencies": {
"@angular/common":  "2.0.0-rc.4",
"@angular/core":  "2.0.0-rc.4",      
"@angular/compiler":  "2.0.0-rc.4",    
"@angular/http":  "2.0.0-rc.4",
    "@angular/forms": "0.2.0",
"@angular/platform-browser":  "2.0.0-rc.4",
"@angular/platform-browser-dynamic":  "2.0.0-rc.4",
 "@angular/router": "3.0.0-beta.1",
"@angular/router-deprecated":  "2.0.0-rc.2",
"systemjs": "0.19.27",    
"reflect-metadata": "^0.1.3",
"rxjs": "5.0.0-beta.6",
"zone.js": "^0.6.12",
"core-js": "^2.4.0"    
 },
"devDependencies": {
"concurrently": "^2.0.0",
"lite-server": "^2.1.0",
"typescript": "^1.8.7",
"typings":"^0.7.5"

}

Here is an excerpt from my app.component.ts file

import {Component} from '@angular/core';
import { bootstrap }    from '@angular/platform-browser-dynamic';
import { disableDeprecatedForms, provideForms } from '@angular/forms';

 import {CORE_DIRECTIVES, FORM_DIRECTIVES, FormBuilder,Validators,Control,ControlGroup } from '@angular/common';

@Component({
selector: 'ej-app',    
templateUrl: 'app/app.component.html',
directives: [ CORE_DIRECTIVES]  
})
bootstrap(AppComponent, [
disableDeprecatedForms(),
provideForms()
]).catch((err: any) => console.error(err));

export class AppComponent {

employeeDob: Date;
constructor(private myform: FormBuilder) {
}

This modification resulted in a script error like the one displayed in the screenshot

Could you kindly recommend how to update the Angular version without encountering any issues?

javascriptangularjstypescriptangularangular2-forms

Answer №1

Make sure to update your systemjs.config.js configuration file. The location of the .umd.js files has been moved to its own bundles folder:

var ngPackageNames = [
    'common',
    'compiler',
    'core',
    'forms',
    'http',
    'platform-browser',
    'platform-browser-dynamic',
    'router',
    'router-deprecated',
    'upgrade'
];

ngPackageNames.forEach(function(pkgName) {
    packages['@angular/'+pkgName] = { main: 'bundles/' + pkgName + '.umd.js', defaultExtension: 'js' };
});

If you need more details, refer to the quickstart guide provided by angular2

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