Angular 2 : No NgModule metadata found

Question

I\'m brand new to Angular 2 and attempting to follow along with a video tutorial I found. Despite following all of the steps, Angular just won\'t work; I get the following e

Answer 1

With Angular 5, I solved a similar problem by ugrading to @angular/cli 1.6.1 from 1.5.5:

"devDependencies": {
  "@angular/cli": "1.6.1"
}

During ng serve the error I got was:

ERROR in Error: No NgModule metadata found for 'AppModule'.
    at NgModuleResolver.resolve (/path/to/project/app/node_modules/@angular/compiler/bundles/compiler.umd.js:20247:23)