Angular 2 Uncaught ReferenceError : System is not defined . You can Try to include the System JS file in your HTML header file and resolve this error. Include SystemJS Script. < script src ="https://jspm.io/system@0.18.17.js"></ script > The Example for detail as given below. index.html file < !DOCTYPE html > < html > < head > < link rel ="stylesheet" href ="style.css" /> < script src ="https://jspm.io/system@0.18.17.js"></ script > < script src ="https://code.angularjs.org/2.0.0-alpha.36/angular2.min.js"></ script > < script > System.config({ paths: { 'main.js' : 'main.js' } }); ...
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