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)

Answer 2

I had the same problem and couldn't solve it after reading all the above answers. Then I noticed that an extra comma in declarations was creating a problem. Removed it, problem solved.

@NgModule({
    imports: [
        PagesRoutingModule,
        ThemeModule,
        DashboardModule,
    ],
    declarations: [
        ...PAGES_COMPONENTS,
        **,**
    ],
})

Answer 3

I finally found the solution.

1. Remove webpack by using following command.

npm remove webpack

2. Install cli by using following command.

npm install --save-dev @angular/cli@latest

after successfully test app, it will work :)

If not then follow below steps:

1. Delete node_module folder.
2. Clear cache by using following command.

npm cache clean --force

3. Install node packages by using following command.

npm install

4. Install angular@cli by using following command.

npm install --save-dev @angular/cli@latest

Note: If failed, try step 4 again. It will work.

Answer 4

I'll give you few suggestions.Remove all these as mentioned below

1)<script src="polyfills.bundle.js"></script>(index.html)  //<<<===not sure as Angular2.0 final version doesn't require this.

2)platform.bootstrapModule(App); (main.ts)

3)import { NgModule } from '@angular/core'; (app.ts)

Answer 5

In my case, I had defined a couple of (private) static methods in one of my components and was using them in the same component.

Answer 6

I had the same issue and I resolved it by closing the editor i.e. Visual Studio Code, started it again, run ng serve and it worked.